Questions Asked on
February 27, 2012

  1. Chemistry

    Find the pH of each mixture of acids. 0.115 M HBr and O.125 M HCHO2. I TRIED DOING THIS PROBLEM THE SAME WAY AS THE ONE BEFORE BUT IT DIDN'T WORK. THE PH SHOULD BE 0.939. I did HBr as stronger acid and got concentration of H+ and put it into the ka

    asked by L.Bianchessi
  2. English

    i read this story today and need help with few questions. sorry it a bit long. i actually not real understand it, especially ending. THE WHITE KNIGHT by Eric Nicol Once upon a time there was a knight who lived in a little castle on the edge of the forest

    asked by Mohammad
  3. Physics!!!

    A 24-V battery is connected in series with a resistor and an inductor, with R = 5.6 Ω and L = 2.0 H, respectively. (a) Find the energy stored in the inductor when the current reaches its maximum value. (b) Find the energy stored in the inductor one time

    asked by Help
  4. Chemistry

    Determine whether each cation is acidic or pH neutral. For those cations that are acidic, write an equation that shows how the cation acts as an acid. A) Sr+2 B) Mn+3 C) C5H5NH+ D) Li+

    asked by L.Bianchessi
  5. Geometry

    4. Plots of land between two roads are laid out according to the boundaries shown. The boundaries between the two roads are parallel. What is the length of Plot 3 along Cheshire Road? 46 yards 67 yards 66 yards 37 yards

    asked by Alexa
  6. Chemistry

    Find the pH of each mixture of acids. 0.020 M HBr and 0.015 M HClO4. They are both strong acids Si they dissociate completely. Si do I just add 0.020 and 0.015 and take the -log of that concentration to get the pH? Like thus.... 0.020+0.015=0.035

    asked by L.Bianchessi
  7. Geometry

    To the nearest degree, what angle does a hill with a grade of 11% make with a horizontal line?

    asked by Hanna
  8. DUE AT MIDNIGHT PLEASE HELP- Calculus

    A trough is 5 meters long, 1 meters wide, and 4 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 4 meters, and base, on top, of length 1 meters). The trough is full of water (density

    asked by Cait
  9. Physics

    A 0.1-kg object is traveling to the right (in the positive direction) with a speed of 2 m/s. After a 0.2 s collision, the object is traveling to the left at 3 m/s. What is the magnitude of the impulse (in N-s) acting on the object? The answer must be

    asked by Mark
  10. physics

    A 60 kg woman and an 85 kg man stand 9.0 m apart on frictionless ice. (a) How far from the woman is their CM? (b) If each holds one end of a rope, and the man pulls on the rope so that he moves 1.1 m, how far from the woman will he be now? (c) How far will

    asked by Ashley
  11. physics

    a car is traveling 20.0 m/s when the driver sees a child standing in the road. he takes 0.80 seconds to react, then steps on the brakes and slows at -7.0 m/s squared. how far does the car go before it stops?

    asked by allison
  12. college

    Joan wants to start an IRA that will have $250,000 in it when she retires in 21 years. How much should she invest annually in her IRA to do this if the interest is 16% compounded quarterly?

    asked by Anonymous
  13. chemistry

    A galvanic cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.

    asked by katie
  14. physics

    This question is typical on some driver's license exams: A car moving at 50km/hr skids 15m with locked brakes.How far will the car skid with locked brakes at 120 km/h?

    asked by jim
  15. chemistry

    A galvanic cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.

    asked by katie
  16. Chemistry

    Determine whether each cation is acidic or pH neutral. For those cations that are acidic, write an equation that shows how the cation acts as an acid. A) Sr+2 B) Mn+3 C) C5H5NH+ D) Li+

    asked by L.Bianchessi
  17. Chemistry

    Determine whether each anion is basic or neutral. For those that are basic, wrote an equation that shows how an anion acts as a base. (A) C7H5O2 ^- (B) I^- (C) NO3^- (D) F^-

    asked by L.Bianchessi
  18. Discete Math

    Show that there must be at least 90 ways to choose six integers from 1 to 15 so that all choices have the same sum.

    asked by Don
  19. Geometry

    A stunt airplane travels at N 62 E at a constant speed of 400 mi/hr. There is a 20 mi/hr wind blowing doe west. What is the planes actual speed?

    asked by Sydney Rood
  20. physics

    Four very thin rods, each 5.9 m long, are joined to form a square, as part (a) of the drawing shows. The center of mass of the square is located at the coordinate origin. The rod on the right is then removed, as shown in part (b) of the drawing. What are

    asked by Day
  21. Physics

    A 73kg sprinter, starting from rest, reaches a speed of 7.0 m/s in 1.8s, with a negliable effect due to air resistance. The sprinter then runs with the remained of the race at a steady speed of 7.0 m/s under the influence of a 35-N force due to air

    asked by Bob
  22. Chemistry

    At 25°C, K = 0.090 for the following reaction. H2O(g) + Cl2O(g) equilibrium reaction arrow 2 HOCl(g) Calculate the concentrations of all species at equilibrium for the following case. 1.3 mol pure HOCl is placed in a 1.6 L flask [HOCl]________

    asked by Ann
  23. Chemistry

    Determine whether each cation is acidic or pH neutral. For those cations that are acidic, write an equation that shows how the cation acts as an acid. A) Sr+2 B) Mn+3 C) C5H5NH+ D) Li+

    asked by L.Bianchessi
  24. Math

    Hey, I need your help! I have an input output table that I need the function rule for. The table is like this: Input: 0 Output: 25 Input: 100 Output: 35 Input: 200 Output: 45 Input: 300 Output: 55 Input: 400 Output: 65 PLEASE I NEED YOUR HELP!!! Thanks!

    asked by C.J.
  25. Chemistry

    a 5.00-g sample of octane is burned in a bomb calorimeter containing 2.00x10^2 h h2o. how much energy, in cal,is released if the water temperature increases 6.00 degrees celcius?

    asked by Jessica
  26. Chemistry

    The specific heat of solid copper is 0.385 J/g*C. What thermal energy change occurs when the temperature of a 40.10g sample of copper is cooled from 42.9C to 10.0C? Be sure to give you answer the proper sign. I know this is part of the answer which

    asked by Tiffany
  27. Math

    We are studying Quadratic formula: A football player punts a ball. The path of the ball can be modeled by the equation y=-0.004x(squared) + x + 2.5, where x is the horizontal distance, in feet, the ball travels and y is the height, in feet, of the ball.

    asked by Jane
  28. Chemistry

    Write the equations describing the electrode reactions and the net cell reaction for this electrochemical cell containing tin and silver: Sn(s)|Sn2 (aq)||Ag (aq)|Ag(s) what is the equation for cathode, anode, and net cell reaction

    asked by Katie
  29. Physics

    The magnetic force on a straight wire .69 m long is 1.5 x 10^-3 N. The current in the wire is 16.9 A. What is the magnitude of the magnetic field that is perpendicular to the wire?

    asked by Doryn
  30. Physics

    A ship maneuvers to within 2500 m of an island's 1800 m high mountain peak and fires a projectile at an enemy ship 610 m on the other side of the peak, as illustrated in Figure 3-29. If the ship shoots the projectile with an initial velocity of v = 256 m/s

    asked by Shawn
  31. Geometry

    To the nearest degree, what is the measure of the smallest angle of a right triangle whose legs measure 9 and 15?

    asked by Hanna
  32. Physics

    A cart traveling at 0.3 m/s collides with stationary object. After the collision, the cart rebounds in the opposite direction. The same cart again traveling at 0.3 m/s collides with a different stationary object. This time the cart is at rest after the

    asked by Mark
  33. Physics

    A quarterback takes the ball from the line of scrimmage, runs backward for 8 yards, and then runs sideways parallel to the line of scrimmage for 5 yards. At this point, he throws a 49 yard forward pass straight down the field. What is the magnitude of the

    asked by Anonymous
  34. Chemistry

    Write the equations describing the electrode reactions and the net cell reaction for this electrochemical cell containing tin and silver: Sn(s)|Sn2 (aq)||Ag (aq)|Ag(s) what is the equation for cathode, anode, and net cell reaction

    asked by Katie
  35. physics

    A cart starts from position 4 (which is 20m above ground) in the figure below with a velocity of 11 m/s to the left. Find the speed with which the cart reaches positions 1, 2, and 3. Neglect friction. speed at position 1 m/s? speed at position 2 m/s? speed

    asked by Jacky
  36. physics

    A roller coaster reaches the top of the steepest hill with a speed of 7.0 km/h. It then descends the hill, which is at an average angle of 38^\circ and is 50.0 m long.

    asked by Anonymous
  37. Chemistry

    A solution is prepared by adding 50ml of .05 M HCl to 150 ml of .10 M HNO3. Calculate the concentrations of all species in this solution.

    asked by Help
  38. Chemistry(Please help, thank you)

    I have to calculate the concentration of I2 produced (# of moles of I2 produced / L) based on the stoichiometric ratio in the following equation. 2S2O3^2- + I2 -> 2I^- + S4O6^2- Chemistry(Urgent, please help) - DrBob222, Sunday, February 26, 2012 at 9:47pm

    asked by Hannah
  39. Business And Technical Writing-Proposals and Speci

    These are the ones I'm not 100% sure about Ive looked it up in the book and I just not sure please help me. 1.One advantage of topic outlines is that they provide A. topic sentences for your paragraphs. B. new ideas for your outline. C. internal headings

    asked by alisha221
  40. help help help chemistry

    why will no one answer this question? For a one step reaction, the activation energy for the forward reaction is 40.0 kJ/mol and the enthalpy of reaction is -20.0 kJ /mol. Which statement below is true? a. The activation energy of the forward reaction

    asked by john117
  41. calculus

    A trough is 10 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x10 from x=−1 to x=1 . The trough is full of water. Find the amount of work in foot-pounds required to empty the trough by

    asked by Caitlyn
  42. Fairmont

    Last month, your electric bill was $25.32 for 450 kilowatt-hours of electricity. At that rate, what would be the bill for 240 kilowatt-hours?

    asked by Rose
  43. Inferential Statictics

    Welsh, Davis, Burke, and Williams (2002) conducted a study to evaluate the effectiveness of a carbohydrate-electrolyte drink on sports performance and endurance. Experienced athletes were given either a carbohydrate-electrolyte drink or a placebo while

    asked by Summer
  44. math

    2. suppose a point at (2,3) is translated to (7,-1). which rule describes this translation? a) translate right 5, down 4 b) translate left 5, up 4 c) translate right 9, down 2 d) translate left 9, up 2 3. if the point (-5, -8) is reflected over the y-axis,

    asked by running.from.myself
  45. physics

    How much work is required to lift a 280 kg refrigerator to the second-story level that is 6m high?

    asked by jim
  46. mental health

    list three sources of feedback that can influence a person's feelings of self-worth.

    asked by cheyanne
  47. Physics

    How many seconds will elapse between seeing lightning and hearing the thunder if the lightning strikes 2 mi away and the temperature is 100 degree F?

    asked by Hannah
  48. chemistry

    Al2O3(s)+6NO(g)---->5N2(g)+6H2O(l) how many grams of Nitric Oxide are required to produce 145g of nitrogen in the following reaction?

    asked by Mandy
  49. Chemistry

    Calculate the OH - concentration present in water under the following conditions. Enter your answer in scientific notation. A)[H3O+] = 9.4 x 10-10 M B)[H3O+] = 5.5 x 10-3 M C)[H3O+] = 6.2 x 10-12 M

    asked by Kyle
  50. Physics help

    A light rope is wrapped several times around a large wheel with a radius of 0.435 m. The wheel? A light rope is wrapped several times around a large wheel with a radius of 0.435 m. The wheel rotates in frictionless bearings about a stationary horizontal

    asked by BB
  51. Calculus and Vectors

    A bald eagle flying horizontally at 48km/h drops it's prey from a height of 50m. a)what is the prey's vertical velocity when it hits the ground? b)when is the vertical speed greater than the horizontal speed?

    asked by Sally
  52. college algebra

    A steel drum in the shape of a right circular cylinder is required to have a volume of 100 cubic feet. express the amount of material required to make the drum as a function of the radius r of the cylinder. also how much material is required if the drum is

    asked by Carol
  53. Accounting

    In its first month of operations, Cisler Company made three purchases of merchandise in the following sequence: (1) 300 units at $6, (2) 400 units at $8, and (3) 500 units at $9. Assuming there are 200 units on hand at the end of the period, compute the

    asked by Casey
  54. Chemistry

    The specific heat of solid copper is 0.385 J/g*C. What thermal energy change occurs when the temperature of a 40.10g sample of copper is cooled from 42.9C to 10.0C? Be sure to give you answer the proper sign. I know this is part of the answer which

    asked by Tiffany
  55. Physics (IMPULSE)

    A cart traveling at 0.3 m/s collides with stationary object. After the collision, the cart rebounds in the opposite direction. The same cart again traveling at 0.3 m/s collides with a different stationary object. This time the cart is at rest after the

    asked by Mark
  56. arithmetic

    determine the A.P whose fourth term is 18 and the difference of the ninth term from the fifteenth term is 30.

    asked by shabna
  57. college algebra

    suppose the revenue in dollars from selling x cell phones is R(x)= -1.2x^2+220x. the cost in dollars of selling x cell phones is C(x)=0.05x^3-2x^2 +65x+500. find the profit function P(x)=R(x)-C(x). find the profit if x=15 hundred cell phones sold

    asked by Carol
  58. MATH - area question

    I need help on where to begin with this problem. You are installing a new deck around your pool. The pool is rectangular with the dimensions 8m by 4m. The deck will surround the pool and will have a width by 2m. What is the area of the deck? I know that

    asked by Ali
  59. ELA

    Write the unstressed syllable beside each word worship ship pilgrim grim repair re distance tance carrot rot entry try destroy des forbid bid hidden den dozen zen

    asked by M
  60. physics

    A skier slides horizontally along the snow for a distance of 22.3 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is 0.0500. Initially, how fast was the skier going?

    asked by Candy
  61. Finite with Calculus Applications

    The Ball Company manufactures three types of lamps, labeled A,B,and C. Each lamp is processed in two departments, I and II. Total available work-hours per day for departments I and II are 400 and 600, respectively. No additional labor is available. Time

    asked by Andre
  62. physics

    a body of mass 5kg is thrown vertically upwards with a speed of 10m/s. what is its kinetic energy when its thrown? find its potential energy when it reaches at the highest point. also find the maximum height attained by the body[g=10m/s]

    asked by akansha
  63. Physical Science Two Questions Please help!

    If no friction acts on a diver during a dive, then which of the following statements is true? A) The total mechanical energy of the system increases. B) Potential energy can be converted into kinetic energy but not vice versa. C) (KE + PE)beginning = (KE +

    asked by Amaya
  64. Chemistry

    Calculate pH for strong base solution: 1.100 g of KOH in 550.0 mL of solution

    asked by Matt D
  65. Chemistry

    Calculate [ClO^-] in a 6% bleach solution. A 6% bleach solution contains 6 grams of NaClO per 100 grams bleach. The density of 6% bleach is 1.07g/mL.

    asked by Cassandra
  66. Chemistry

    Calculate [ClO^-] in a 6% bleach solution. A 6% bleach solution contains 6 grams of NaClO per 100 grams bleach. The density of 6% bleach is 1.07g/mL.

    asked by Cassandra
  67. Physics

    In her physics lab, Stephanie rolls a 30 g marble down a ramp and off a table with a horizontal velocity of 2 m/s. The marble falls in a cup placed 0.4 m from the table’s edge. a. How long is the ball in the air? 0.2 s b. How high is the table? m

    asked by Sam
  68. Calculus

    A trough is 5 meters long, 1 meters wide, and 4 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 4 meters, and base, on top, of length 1 meters). The trough is full of water (density

    asked by Caitlyn
  69. Physics

    Steve and Doug are painting on a scaffold held by two ropes have supporting the scaffold at its ends. Their combined weights are 2000 N. The tension in the supporting ropes that support the scaffold they stand on adds to 1500 N. Solve for the weight of the

    asked by Anonymous
  70. chemistry

    Al2O3+6HCl----->AlCl3+3H2O what type of reaction is this? -combination -decompisition -or double displacement reaction

    asked by Mandy
  71. Math

    Jillian must average at least 90 on two quiz scores before she can move to the next skill level. Jillian got a 92 on her first quiz. What scores could Jillian get on her second quiz in order to move to the next skill level? Please help me and show your

    asked by Rachel
  72. Medical Coding/Billing

    PROCEDURES: Excision of a 2.5 cm hemangioma on the waistline with extensive undermining and closure. Excision of suspicious 1.5 cm lesion of the left ankle with extensive undermining and closure. How would you code this ICD-9-CM Procedure code

    asked by Steffen
  73. science

    The density of liquid oxygen at its boiling point is 1.14 \rm{kg/L} , and its heat of vaporization is 213 \rm{kJ/kg} . How much energy in joules would be absorbed by 4.0 L of liquid ox

    asked by ashley
  74. Finance

    When calculating the WACC, it is standard practice to subtract __________ to compute the net debt outstanding.

    asked by Michelle
  75. physics

    At a given instant in time, a 4.2-kg rock is observed to be falling with an acceleration of 8.4 m/s2. To two decimal places, what is the magnitude of the force of air resistance acting upon the rock at this instant?

    asked by matt
  76. PRE-CAL

    How can I solve this questions and get those answers???? answers sec 13pi/4=? =>-ã(2) csc 13pi/4=? =>-ã(2) sec (-pi/6)=? =>2ã(3)/3

    asked by MELEK
  77. math

    A group of 12 students has average height of 58 inches. Another group of 6 students have an average of 52 inches. What is average height of 18 students combined.

    asked by Gayle
  78. Scottsdale c c

    A baseball has a velocity of 44.0 m/s, directed horizontally, as it is released by a pitcher. The ball’s velocity 0.0100 s before it is released is 42.0 m/s, directed 3.00 degrees above the horizontal. Estimate the ball’s instantaneous acceleration

    asked by JUAN
  79. Physics

    A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 73.0-kg water-skier has an initial speed of 7.1 m/s. Later, the speed increases to 10.9 m/s. Determine the work done by the

    asked by Candy
  80. math

    How do I set this up and solve? You are planning a rectangular patio with length that is 7 ft less than 3 times its width. The area of the patio is 120 ft squared. What are the dimensions of the patio?

    asked by Jane
  81. Chemistry

    Consider the following equilibrium reaction: NaHCO3(s) Na2CO3(s) + H2O(g) + CO2(g) When 100 g of sodium hydrogen carbonate are added to a reaction vessel, the temperature is increased to 200°C, and the system comes to equilibrium. What happens to the

    asked by Tanner
  82. science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

    asked by Anonymous
  83. physics

    A 750.0 N man, carrying a 1.9 kg physics textbook, stands at the center of a frozen pond of radius 9.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome his difficulty, he throws his textbook

    asked by Joe
  84. Chemistry

    What compounds can be formed by the reaction of K2SO4 and BaCI2?

    asked by Lea
  85. Finance

    Say that you purchase a house for $270,000 by getting a mortgage for $235,000 and paying a $35,000 down payment. If you get a 15-year mortgage with a 8 percent interest rate, what are the monthly payments?

    asked by Brittany
  86. Physics

    A ball is dropped from 27.0 ft above the ground. (a) Using energy considerations only, what is the velocity of the ball just prior to it hitting the ground? (b) If the ball is thrown back up to a ledge 15 m above the ground, what would be the velocity just

    asked by Hannah
  87. physics

    A 220-g ball strikes a wall with a speed of 7.0 m/s and rebounds with only 37% of its kinetic energy. What is the speed of the ball immediately after rebounding? What is the magnitude of the impulse of the ball on the wall? If the ball was in contact with

    asked by Katie
  88. science

    Numbers 1-9 are true and false questions.Check if my answers are right and if I didn't write anything on the blank, I need help with them. Thanks!!!! _____ 1. Velocity could be reported as 50 k/hr. True 2. How far an object travels in a certain period of

    asked by Gabby ( 5 grade)
  89. Physics

    A 279 N force is pulling an 75.9-kg refrigerator across a horizontal surface. The force acts at an angle of 26.3 ° above the surface. The coefficient of kinetic friction is 0.259, and the refrigerator moves a distance of 9.14 m. Find (a) the work done by

    asked by Candy
  90. physics

    A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs, between the wall and the pole

    asked by rey
  91. Accounting

    In its first month of operations, Cisler Company made three purchases of merchandise in the following sequence: (1) 300 units at $6, (2) 400 units at $8, and (3) 500 units at $9. Assuming there are 200 units on hand at the end of the period, compute the

    asked by Casey
  92. physics

    A 3.00-kg blob of putty moving at 2.40 m/s slams into a 4.80- g blob of putty at rest. Calculate the speed of the two stuck-together blobs of putty immediately after colliding

    asked by jim
  93. Pre- Cal

    How long, to the nearest year, will it take me to become a millionaire if I invest $1000 at 10% interest compounded continuously? I got 70 years, but it is wrong. I used the P (1+ (r/m))^mt Thank you.

    asked by Min
  94. physics

    A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. The weight of the ladder is 18.4 lb. A 60.8-lb boy climbs 4.18 m up the ladder. What is the magnitude of the frictional force exerted on the

    asked by help
  95. geometry

    Miguel is driving his motorboat across a river. The speed of the boat in still water is 10 mi/h. The river flows directly south at 3 mi/h. If Miguel heads directly west, what are the boat’s resultant speed and direction? Round answers to the nearest

    asked by hiba
  96. Science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

    asked by Mrs. Sue can you please answer this question
  97. math

    Triangle RST is similar to triangle XYZ. If the measure of angle S is 41°, and the measure of angle R is 76°, what is the measure of angle Z? please help

    asked by Gabby
  98. math 208

    The table lists the price P of a first-class postage stamp for selected year’s t. t 1963 1975 1987 2002 2007 p $.05 $.13 $.25 $.37 $.41 (a) Find the slope of each line segment connecting consecutive data points in the table. Can these data be modeled

    asked by lanie
  99. math 208

    Price of a Stamp The table lists the price P of a first-class postage stamp for selected year’s t. t 1963 1975 1987 2002 2007 p $.05 $.13 $.25 $.37 $.41 (a) Find the slope of each line segment connecting consecutive data points in the table. Can these

    asked by lanaie
  100. Math ( please helllp )

    The sides of a triangle have lengths ; 2x-1,x+3,3x-4 . Which of the following describes the perimeter of the triangle in terms if "x"

    asked by Amanda Mosley
  101. math

    kim ate 3/2 slices of an apple. Did he eat less than a whole apple or more than the whole apple. draw picture to show your answer

    asked by ashley
  102. math

    lisette drew a rectangle and divided it into fourths. She colored the whole rectangle. How many fourths were colored?

    asked by ali
  103. Math

    the ages of two brothers are 11 and 8 years. In how many years time will the product of their ages be 208?

    asked by Yana
  104. algebra

    Ticket Prices Two hundred tickets were sold for a baseball game, which amounted to $840. Student tickets cost $3, and adult tickets cost $5. (a) Let x be the number of student tickets sold and y be the number of adult tickets sold. Write a system of linear

    asked by kay
  105. physics

    a body of mass 5kg is thrown vertically upwards with a speed of 10m/s. what is its kinetic energy when its thrown? find its potential energy when it reaches at the highest point. also find the maximum height attained by the body[g=10m/s]

    asked by akansha
  106. Physics

    Object 1 (mass=5.5 kg) traveling in the +x direction at a speed of 12.40m/s undergoes an inelastic collision with Object 2 (mass=4.80kg) which is at rest. Object two flies off at a speed of 7.80m/s and an angle θ2=32.4 °. It is possible that Object 1

    asked by Macey
  107. physics

    Can someone please help me solve this: An 7.74g bullet is fired into a 320g block that is initially at rest at the edge of a frictionless table of height h = 1.07 m The bullet remains in the block, and after the impact the block lands d = 2.07 m from the

    asked by Jackie
  108. physics

    What change in kinetic energy does an airplane experience on takeoff if it is moved a distance of 600 m by a sustained net force of 5400 N?

    asked by jim
  109. physics

    If you were asked to design a capacitor in which small size and large capacitance were required, what factors would be important in your design?

    asked by melissa
  110. AB Calculus

    So I'm supposed to verify the solution of the differential equation. The solution is y=e^(-x). The differential equation is 3y' + 4y = e^(-x). What is the problem asking me to do here?

    asked by Hannah
  111. Physics

    How much heat is required to melt 50 g of mercury at -45 degrees celsius to 425 degrees celsius. (melting point=-38.degree-c, specific heat=0.03325 cal/g-degree c for solid mercury, .2988 cal/g-c degree c for liquid mercury and .2486 cal/g-c degree for

    asked by Abby
  112. English

    Writeacher, could you please check these sentences on the same theme? Thank you. 1) He always sneezes, blows his nose, and can't breathe. I tripped over a step. I fell off and sprained my ankle. 2) I cleaned the wound (or injury???) under running water,I

    asked by Henry2
  113. Physics

    Workmen are trying to free an SUV stuck in the mud. To extricate the vehicle, they use three horizontal ropes, producing the force vectors shown in the figure.

    asked by Avina
  114. english

    i need help in forming my ideas into good sentences. i taken all these ideas from a movie that we watch from the class 1. Water is the source of life, we all depend on it,Water is important, We cannot survive a week without water 2. Water should be free,

    asked by ESLstudent
  115. Part of Essay

    Studying in the USA, I believe that I am not only getting an internationally recognized education, but also a thrifty one. My decision to study here will help me become independent. In addition, the money I save by studying here will eventually help me

    asked by Zero
  116. calculus

    Use Lagrange multipliers to find the max/min values of the function f(x,y)=xy subject to the constraint: x^2/8+y^2/2 =1 Pleasssse help me with this!!

    asked by Lucy
  117. physics

    The temperature in a room is kept at a constant 20 °C but the humidity is only 20%. If the room has a volume of 30m³, and the room’s door and windows closed, how many kilograms of water must be put into the vaporizer to increase the humidity from 20%

    asked by sand
  118. 3RD GRADE MATH

    NAME 2 SMALLER ARRAYS YOU CAN USE TO FIND THE PRODUCT. 8X6=

    asked by MARSHAL
  119. maths

    The triangle has vertices A(0,1),B(1,6) and C(5,2).Prove that the triangle is isosceles.

    asked by mulinda
  120. English

    Writeacher, I left out an email I need to write to a school's principal. I really need to "persuade" him to start a school exchange programme. I wonder if you could help me check it. I didn't include tje presentation of the school because you have already

    asked by Henry2
  121. english FIXED

    original thread: cgi?id=1330376726 1. Water is the source of life. We all depend on it. Water is important, and we cannot survive a week without it. 2. Water should be free; it is a basic need for living. We should not consider buying bottled water. 3.

    asked by ESLstudent
  122. maths

    Given that the equation of the parabola is 5y^2 + 24x = 0. Find (1)The Axis and vertex of the parabola (ii)The focus and the directrix (iii)The distance from the directrix to the focus

    asked by mary
  123. prealgebra

    Identify the percent of change as an increase or a decrease.Then find the percent of change. #2) Original:23 New:46 and #3) Original:120 New:150 How do you solve this and show your work??

    asked by vick
  124. money

    Olivia bought some school supplies. In the first store she spent half the money she had plus $6. In the second store she spent one third of what was left plus $6.In the last store she spent ¼ of what was left and came home with $6.How much did she start

    asked by linda
  125. chemistry

    For a one step reaction, the activation energy for the forward reaction is 40.0 kJ/mol and the enthalpy of reaction is -20.0 kJ /mol. Which statement below is true? a. The activation energy of the forward reaction would be affected to a greater extent than

    asked by john117
  126. Math

    You play a game where you win $1.00 for each dot that turns up on a fair die (has 6 sides). You pay $3.50 to play the game (and the money is not returned). Find the expected (average) winnings for this game.

    asked by Alexis
  127. Math

    Calvin Hines is a graphic designer. He ears $11.50 per hour. Last week he worked 7 hours each day, Monday through Friday. What was his total pay for the week?

    asked by Sakiera
  128. physics

    a) A set of crash tests consists of running a test car moving at a speed of 12.6 m/s (27.7 m/h) into a solid wall. Strapped securely in an advanced seat belt system, a 69.0 kg (151.8 lbs) dummy is found to move a distance of 0.600 m from the moment the car

    asked by Katie
  129. math

    if a 6 foot vertical rod casts a shadow 15 feet long, how high is a flagpole that casts a shadow 60 feet long? i know this is multiplication, but i don't know how to set it up. 10 feet?

    asked by jocelyn
  130. Math

    Create a function that closely gives the graph given in the link. The function may be a piecewise function but it does not necessarily have to be a piecewise function. a. Give a brief narrative explaining what you did to create your function. b. List your

    asked by Fatih
  131. calculus

    Evaluate the following integral: (X)(cube root(x+1))dx

    asked by Anonymous
  132. calculus

    Please check this for me: the lenght l, width w, & height h of a box change with time. At a certain instant the dimensions are l=1m & w=h=2m. L and W are increasing at a rate of 2m/sec while H is decreasing at a rate of 2m/sec. At that instant, find the

    asked by Freddy
  133. statistics anova

    a professor is interested in whether there is a differnce in counseling student's statistics competency scores among 1) those who have never taken any statistics ourse, 2) those who have only taken an undergraduate statistics course, 3)

    asked by caryn
  134. Chemistry

    It requires 25.1 mL of 0.110 M HCl to titrate 12.0 mL of an NaOH solution of unknown concentration. What is the NaOH concentration?

    asked by Kyle2
  135. algebra. help!!

    I TRIED WITH X/6 - X/9 IT DIDN'T WORK. HERE THE PROBLEM: Two candles are the same length. One candle takes 6 hours to burn all the way down while the other candle takes 9 hours. If the two candles are lit at the same time, how long will it take for the two

    asked by DIANE
  136. chemistry

    What is the molarity of ZnCl2 that forms when 19.0 g of zinc completely reacts with CuCl2 according to the following reaction? (Assume a final volume of 195 .)

    asked by jiy
  137. math

    A rectangle has a perimeter of 12m. if each side is a whole number of meters, what are the possible dimensions for the length and width? List them and please explain your answer.

    asked by shion
  138. cal3

    Find and classify all local minima, local maxima, and saddle points of the function f(x,y)= -3yx^2-3xy^2+36xy

    asked by Lucy
  139. Physics

    The coefficient of kinetic friction between a suitcase and the floor is 0.23. If the suitcase has a mass of 70.0 kg, how far can it be pushed across the level floor with 530 J of work?

    asked by Anthony
  140. maths

    Given that the ellipse x^2/a^2 + y^2/b^2 =1 has foci at(+/-ae,0)where e is the eccentricity and b^2=a^2(1-e^2),find the coordinates of the foci and the value of e^2 for the ellipse X^2+4y^2 =16

    asked by muzungu
  141. Physics

    How much heat is required to melt 50 g of mercury at -45 degrees celsius to 425 degrees celsius. (melting point=-38.degree-c, specific heat=0.03325 cal/g-degree c for solid mercury, .2988 cal/g-c degree c for liquid mercury and .2486 cal/g-c degree for

    asked by Abby
  142. math

    Solution for 2/3x+x+90=180

    asked by mai
  143. engineering

    A steady, two-dimensional velocity field is given by V = (u, v) = (1.35 + 2.78x - 0.896y)i + (3.45x + cx - 2.78y)j Calculate constant c such that the flow field is irrotational.

    asked by Angel
  144. physics

    A mass of 1000kg is released from a height of 10m.with what energy will it strike the floor?(g=10m/s/s)

    asked by Kenoba
  145. prealgebra

    Find the New amount. #4.) Increase 35 by 40% #5) Increase 125 by 8% I don't know how to solve this and show work. Please help me kind person

    asked by vick
  146. Physics

    A positive test charge is moving between two oppositely charged plates. As the charge moves toward the negative plate, its potential energy? does it decrease, increase, or remain the same?

    asked by TomTom
  147. prealgebra

    You are ordering food for home delivery. The cost of your food is $26. You want to give the delivery person an 18% tip. What is the total cost with the tip? How do you show your work and solve this problem up above?????

    asked by vick
  148. english

    sorry for posting it again i just need some help with proof read original thread display.cgi?id=1330379031 1. Water is the source of life. We all depend on it. Water is important, and we cannot survive a week without it. 2. Water should be free; it is a

    asked by ESLstudent
  149. chemistry

    A container is charged with hydrogen, nitrogen, and ammonia gases at 120°C and the system was allowed to reach equilibrium. What will happen if the volume of the container is increased at constant temperature? 3H2(g) + N2(g) 2 NH3(g)

    asked by Tanner
  150. help!!!!!!!!

    in the days of king adobe, what is a charactertrait describing the two travelers.give two examples to support your description. I picked sneaky. I only know one supporting detail.I need help finding the other supporting detail.

    asked by Celest
  151. physics

    a 9000 kg railroad car moving at 3 m/s strikes a stationary 5000 kg railroad car .what is the momentum of the 9000 kg railroad car before the collision?

    asked by Anonymous
  152. physics

    A passenger in a helicopter traveling upwards at 23 m/s accidentally drops a package out the window. If it takes 16 seconds to reach the ground, how high to the nearest meter was the helicopter when the package was dropped?

    asked by Anonymous
  153. ACC291

    The following stockholders' equity accounts arranged alphabetically are in the ledger of McGrath Corporation at December 31, 2011. Common Stock ($10 stated value) $1,500,000 Paid-in Capital from Treasury Stock 6,000 Paid-in Capital in Excess of Stated

    asked by Beth
  154. Math. Proportions

    Can u check these. ? What percent of 230 is 23? I got : 28.75% is this. Right? 80% of what number is 15? I got : 18.75% is that right? Word problem A school holds classes from 8a to 2p For what percent of a 24hr day does this School hold class? I got 25%

    asked by Marko
  155. algebra help please

    Mixture Problem... An auto tech needs a radiator to have a 40% antifreeze solution. The radiator currently is filled with 4 gallons of a 25% antifreeze solution. How much of the antifreeze mixture should be drained from the car if the mechanic replaces it

    asked by kay
  156. statistics

    Science scores for HS seniors in the US are normally distributed with a mean of 77 and a standard deviation of 7. Students scoring in the top 4% are eligible for a special prize. What is the approximate cutoff score a student must get in order to receive

    asked by taylor
  157. physics

    A 7 kilogram bowling ball is dropped from a fourth story window. If each story is 3 meters high, use energy conservation (not the equations of motion) to find the ball's velocity when it strikes the ground. Ignore air resistance. 1/2 m v^2= mgh v= sqrt

    asked by TRACY
  158. Economics

    Hi, I was wondering if you know any good websites were I can review for a grade 12 economics exam?

    asked by LA
  159. Math

    4x-3y=33 x=-4y-25 Please help me solve this system of equation and show your work thanks.

    asked by Katy
  160. Calculus based physics

    A particle travels along a path described by the function y=0.2x^3. The exponent of velocity is given by vx=(5t^2)ft/s. When t=0, x=y=0, find the particle's distance from the origin and the magnitude of its acceleration when t=1s.

    asked by Jimmy
  161. English

    Writeacher, I left out a sentence I would like you to check. 1) Mr. Gradgrind's name is composed of two words: Gradgrind: Grade: a particular standard or level of quality of a product + Grind: to crush into powder. Actually, he crushes his students with

    asked by Henry2
  162. cal3/algebra help me!

    Find and classify all local minima, local maxima, and saddle points of the function f(x,y)= -3yx^2-3xy^2+36xy I really need help answering this one!! Please answer in detail! Thank you This is what I have so far... D=FxxFyy-(Fxy)^2=(-6y)(-6x)-(-6x-6y+36)^2

    asked by Lucy
  163. Calculus

    Let f be the function defined by f(x)= x^3 + ax^2 +bx + c and having the following properties. 1. the graph of f has a point of inflection at (0,-2). 2. The average value of f(x) on the closed interval (0,-2) is -3. Determine the values of a,b and c

    asked by Anonymous
  164. math/cal/trig solve for t

    solve for t: 0=4sin(2t)cos(2t)-sin(2t)

    asked by Lucy
  165. Physics

    A 1 kh pendulum os pulled sideways so that it is raised a vertical distance of 2 m above it's resting point. Find the max. Speed the pendulum reaches after being vertical

    asked by Rachel
  166. Math

    Transform the equation by completing the square: 4x^2 + y^2 - 8x + 6y -3 =0 Also show foci

    asked by Jason
  167. math

    the perimeter of a square is 24in. what is the length of each side?

    asked by shion
  168. math

    how much money do i need for simple interest for $2000 at 5% interest in 2 years?

    asked by kim
  169. cal3

    Find and classify all local minima, local maxima, and saddle points of the function f(x,y)= -3yx^2-3xy^2+36xy I really need help answering this one!! Please answer in detail! Thank you

    asked by Lucy
  170. History

    How did the Republicans contribute to the abolitionist cause?

    asked by Kourtney
  171. science

    My cell phone has an antenna about 10.00cm long. If this is one quarter of the wavelength of the radiation, at what frequency in Megahertz does it operate? Note that cell phones, like radio, transmit sounds via electromagnetic waves which travel at the

    asked by Frank
  172. Chemistry

    I'm having a difficult time with the Conversion Units in my equation. Attempting to answer this question: My cell phone has an antenna about 10.00cm long. If this is one quarter of the wavelength of the radiation, at what frequency in Megahertz does it

    asked by Frank
  173. math

    ms lee class had to guess how many jelly beans were in a jar. The clues were that exactly half were red ,and that exactly one third were blue.Based on the information provided ,which of the following is not a reasonable no.of jelly beans that can be in the

    asked by priyal
  174. phsyics

    A brick of mass 1.5 kg slides down an icy roof inclined at 30.0° with respect to the horizontal. (a) If the brick starts from rest, how fast is it moving when it reaches the edge of the roof 1.75 m away? Ignore friction. m/s ? (b) Redo part (a) if the

    asked by Jacky
  175. cal3

    Using the chain rule, find the min and max points and their values of the composite function defined by: z= x^2 + y^2, x=sin(2t), y=cos(t)

    asked by Lucy
  176. Physics

    A 3.50 kg mass, m, on a frictionless table is moving in a circle with radius 0.420 m at a constant speed. m is attached to a 6.40 kg mass, M, by a cord through a hole in the table. Find the speed with which m must move for M to stay at rest.

    asked by Ed
  177. maths

    find the limit as x approaches zero for (2+x)^3 -8/x

    asked by chrystabelle
  178. english

    Is this sentence a simple, complex, or compound sentence? I believe that it is a complex sentence because it is not two sentences put together, is that right? The teacher returned the homework since she was finished grading it.

    asked by Jazmyne
  179. maths

    Find dy/dx of the function f(x) =1/x from first principle

    asked by malisase
  180. math

    Isabel took 20 minutes to run around the track six times. John took 3 minutes to run around the track once. Which student was running faster? Please explain how you found out.

    asked by Unknown
  181. chemistry

    Indicate whether each solution is acidic, basic, or neutral. a. [H3O+] = 6.9 x 10-1 M This solution is acidic. b. [H3O+] = 8.2 x 10-13 M This solution is basic. c. [H3O+] = 3.2 x 10-1 M This solution is acidic.

    asked by krystal
  182. English

    How can hate and ice lead to a tradegy?

    asked by Please help/Dee
  183. science

    if Earth's axis were not tilted,could any area have both a hot summer and a cold winter?

    asked by Debbie
  184. math

    Two briskets are bought 1 weighed 6lb 2 oz and the other weighed 5.25 lbs. What's the combined amount of weight of the 2 briskets?

    asked by brianna
  185. prealgebra

    Find the new amount. #6) Decrease 8 by 75%. #7) Decrease 135 by 22%. I don't know how to solve and show work

    asked by vick
  186. math!!!!!!!!!

    if one light gray hexagon is worth one whole,what fractional part of the hexagon is one black triangle. what fractional part of the hexagon is one dark gray rhombus. what is the total sum off all the pattern blocks.

    asked by Celest
  187. science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

    asked by Anonymous
  188. Physics

    A spy in a speed boat is being chased down a river by government officials in a larger craft. If the spy travels at 26 m/s and the officials travel at a speed of 14 m/s, how far from each other will the two vessels land after they fly off a 5.0 m

    asked by Shawn
  189. Math

    There is a table that shows the percent of adults who used computers from 1984 through 1993. And it says , what is the rate of change from 1989 to 1993? The table shows the years, 1984, 1989, and 1993. And then under it, it says the percent of adults.

    asked by Anonymous
  190. English

    I need help finding a chart/stat about how many students go for online education instead of face-to-face and the progress of it.

    asked by Anonymous
  191. SCIENCE

    what is matter?

    asked by MANDA
  192. Mat/117 DQ1

    How do you know if a quadratic equation will have one, two, or no solutions?Please give examples. How do you find a quadratic equation if you are only given the solution? Please give an example.Is it possible to have different quadratic equations with the

    asked by Rose
  193. chemistry

    balance: Al(s)+H2O(g)--->Al2O3(s)+H2(g) what is the correct equilibrium expression?

    asked by Mandy
  194. PHYSÝCS

    The figure shows the paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 34.14 m, y = 17.75 m, and t = 2.71 s. If the ball was dropped

    asked by please please please helpppp
  195. Science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

    asked by Kate
  196. Science

    An animal cell has all of the following structures except ________

    asked by Vicki
  197. statistics

    How do you find standard deviation?

    asked by Allie
  198. math

    For the first phase of the project, imagine you want to cover the backyard with decorative rock, drought tolerant plants, and trees. You need 18 tons of rock to cover the area and want to purchase 20 plants. If each ton of rock costs $70, each plant is

    asked by Anonymous
  199. Math

    You play a game where you win $1.00 for each dot that turns up on a fair die (has 6 sides). You pay $3.50 to play the game (and the money is not returned). Find the expected (average) winnings for this game.

    asked by Alexis
  200. physics

    A light spring having a force constant of 110  is used to pull a 15.0  sled on a horizontal frictionless ice rink. The sled has an acceleration of 1.60 ? [2/27/12 9:41:56 PM] Matt Yeager: By how much does the spring stretch if it pulls on the sled at

    asked by Charlie
  201. Basic Math

    How do you solve: 5/30 + 3/40 + 1/8

    asked by William
  202. English

    Writeacher,can you please check if everything is correct? Thank you. 1) Can you give me a hand to finish this exercise, please? 2) The answer to your question is on he tip of my tongue. 3) Behave yourself! Don't shrug your shoulders! 4) I can't see at a

    asked by Henry2
  203. why will no one answer? chem

    If the reaction Cl2 (g) + O3 (g) = Cl2O (g) + O2 (g) occurred in just two steps, what would be the overall order of the reaction be? a. 1 b. 2 c. 3 d. 4 e. not possible to determine from the information given i have absolutly no idea how to do this

    asked by john117
  204. math

    I want to put a 3ft wide walk around a 10ft by 15 ft pool. What is the perimeter around the figure including the path?

    asked by tim
  205. Math

    Joe schooley is a secretary. His aunnual salary is $12,447.50. what is his biweekly salary?

    asked by joey
  206. Calculus

    A trough is 5 meters long, 1 meters wide, and 4 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 4 meters, and base, on top, of length 1 meters). The trough is full of water (density

    asked by Caitlyn
  207. Physics

    An electron is moving paralel to the Earth's surface at the equator in a direction 12 degrees south of east. Its velocity is 9.2 x 10^4 m/s and a magnetic force of 9.4 x 10^-18 N is exerted on the electron. If the magnetic field points south at this

    asked by Doryn
  208. math

    Find sum of the areas for the flower garden, patio, and water features circular base. Flower garden: 1.25 in. Water features: diameter: 0.75 in. Height: 1in. Patio: diameter: 2.75 in.

    asked by Anonymous
  209. Math(Ms.Sue) only please

    Ms.Sue i have one more question what is the Biweely salary, The Annual Salary, & The Weekly salary, Monthly Salary, & The Semi-Monthly salary.

    asked by Sakiera
  210. Math algebra1

    What sides of a triangle have lengths 2x-1, x+3, 3x-4. Which of the following describes the perimeter of the triangle in terms of "x"

    asked by Amanda Mosley
  211. Stats

    Explain how to calculate margin of error. What effect does increasing your sample size have on the margin of error? What effect does it have on the confidence level? What effect does it have on the confidence interval?

    asked by Kelly
  212. Math

    4x-3y=33 x=-4y-25 Please help me solve this system of equation and show your work thanks.

    asked by Katy
  213. physics

    0 Search Results for A 50.0 kg student climbs 5.00 m up a rope at a constant speed in 12.3 s. what's the force the student uses to climb the rope

    asked by Anonymous
  214. Spanish-Please check

    When I say four thousand houses in Spanish, is it gender dependent like cuatra mil ollas or do I simply say cuatro mil ollas. I know the numbers from 200-900 are gender dependent but I'm not sure when you get to the four in front of thousand

    asked by Mia
  215. cal3 please help!

    Use Lagrange multipliers to find the max/min values of the function f(x,y)=xy subject to the constraint: x^2/8+y^2/2 =1 so I compare the gradient vectors of both f(x,y) and the constraint: =L resulting in y=Lx/4 and x=Ly now how do i solve for L x and y???

    asked by Lucy
  216. Chemistry

    It requires 17.9 mL of 0.120 M KOH to titrate 78.0 mL of an HCl solution of unknown concentration. Calculate the initial HCl concentration.

    asked by Kyle
  217. math

    Complete the table for this question y=-1/2x+3 the table is x y 0 -2 -4 2 0

    asked by Help
  218. physics

    6 electric lamps connected in parallel at 100 volt explain how they are connected to operate at 200 volts without spoiling them.find the total current intensity in the circuit if the resistance of each lamp 240 Ohm

    asked by amal
  219. Math for Liberal Arts Major

    Find the solution set for the following inequality: x+1>1/2x-11

    asked by Mary
  220. macroeconomics

    how is inflation a monetary phenomenon?

    asked by Anonymous
  221. math

    There are two poles. One is 60 feet tall and the other is 8 feet tall. they are 60 feet apart. How much wire would you need to connect the two poles?

    asked by David
  222. Math

    can you explain why [(pi)^1/2]/pi = 1/[pi^1/2]??

    asked by Saphire
  223. prealgebra

    For #s 4-7 #4) is Increase 35 by 40% 35 * 1.4 = 49 #5)Increase 125 by 8% 125 * 0.08 = 10 #6) Decrease 8 by 75% 8 * 0.75 = 6 #7) Decrease 135 by 22% 135 * 0.22 = 29.7 ARE THESE CORRECT YOU HAD TO FIND THE NEW AMOUNT.

    asked by Tori
  224. Cisco

    How many formula units are in .25 mole of Na O ? 2

    asked by Dee
  225. COLLEGE CALCULUS. HELP!

    1. If f(x)=sin(x^2), Find f'(x) and f'(1) 2. If d/dx(f(3x^3))=9x^2, Calculate f'(x). 3. Let f(x)=cos(6x+6), find f'(x) 4. Let f(x)=-2sec(2x), find f'(x)

    asked by stacy
  226. prealgebra

    can you please help me and help me solve this and show work: Identify the percent of change as an increase or a decrease. Then find the percent of change. #1.) Original:45 New:30 Please help i don't understand how to solve and show work

    asked by vick
  227. help!!!!!!!!

    in the days of king adobe, what is a character trait describing the two travelers.give two examples to support your description. I picked sneaky. I only know one supporting detail.I need help finding the other supporting detail.

    asked by Celest
  228. calculus

    The radius of a sphere was measured to be cm with a possible error of cm. Use linear approximation to estimate the maximum error in the calculated surface area. Leave your answer in terms of . Use linear approximation to estimate the maximum error in the

    asked by higuys
  229. PHYSICS

    If your mass on earth is 70 kg what will be your mass on the moon considering that the gravitational field strength on the moon (g) is 1/6 of that on the earth. (g on earth = 10N/kg)

    asked by LK
  230. Physics

    A 3.50 kg mass, m, on a frictionless table is moving in a circle with radius 0.420 m at a constant speed. m is attached to a 6.40 kg mass, M, by a cord through a hole in the table. Find the speed with which m must move for M to stay at rest.

    asked by Ed
  231. math

    what is the fractional part 1/6 of 60

    asked by emie
  232. Math

    A box holds one layer of 45 baseballs. How can the baseballs be arranged?

    asked by Nadine
  233. cal3

    Consider the function f(x,y)=xy+xz+yz+4 at point p=(2,-1,1) a)find the unit vector in direction of p. b) find the directional derivative at p in the direction of

    asked by Lucy
  234. Ms Sue- Help me check

    My parents always told me to brush my teeth morning and night, nevertheless it was not until high school that I actually realized why I did that. So let us presume my parents learned from their school and encouraged me, but if a villager living in a shanty

    asked by Zero
  235. Math

    The dictionary has a mass of 4 kilograms. The thesaurus has a mass of 2300 grams. How much greater is the mass of the dictionary than the thesaurus? A.1700g B.1900g C.2700g D.4000g C?

    asked by Colton
  236. chem

    How much energy is required to raise the temperature of 217 g of solid mercury at its freezing point to mercury vapor at its boiling point.

    asked by science
  237. Physics

    How much heat is required to melt 50 g of mercury at -45 degrees celsius to 425 degrees celsius. (melting point=-38.degree-c, specific heat=0.03325 cal/g-degree c for solid mercury, .2988 cal/g-c degree c for liquid mercury and .2486 cal/g-c degree for

    asked by Abby
  238. English

    Thank you very much for all your explanations. I still have a few doubts. I included two sentences you have already checked. I just wanted to be sure I used the best alternative. 1) They cut off our gas, light, and phone because we didn't pay the bills. 2)

    asked by Henry2
  239. science

    A student observes a cell with many mitochondria. This cell is most likely what type of cell?

    asked by Anonymous
  240. maths

    Given that the equation of the circle is x^2 + y^2 +2x -8y+5 =0 (i)Find the centre and radius of the circle (ii)Determine whether the line x-3y=8 is tangent to the given circle

    asked by mazoe
  241. chemistry

    alculate the H3O+ concentration present in water under the following conditions. Enter your answer in scientific notation. a. [OH-] = 8.9 x 10-5 M 1.1E-10 b. [OH-] = 3.8 x 10-3 M 2.6E-12 c. [OH-] = 4.8 x 10-12 M 2.1E-3

    asked by krystal
  242. Geometry

    A triangle where AC is equal to 12 angle C is equal to 62 and angle B is equal to 50. What does AB equal

    asked by Sydney Rood
  243. prealgebra

    An entertainment center is on sale for 20% off original price. The original price is $225. What is the sale price? How do you solve and show work for this problem above????

    asked by vick
  244. Math

    The largest tree in the world is the General Sherman sequoia in Sequoia National Park, California. It is 275 feet high, has a diameter of 36.5 feet, and has an estimated weight of 2,150 tons. Fin the sequoia's circumference to the nearest tenth of a foot.

    asked by PLEASE HELP ME
  245. Calculus

    flickr.(dotcom)/photos/77304025@N07/6782789880/ Create a function that closely gives the graph given below. The function may be a piecewise function but it does not necessarily have to be a piecewise function. a. Give a brief narrative explaining what you

    asked by Fatih
  246. Robert Frost/English/Ms.Sue

    Yes, i'm referring to the Poem. I don't understand how hate and ice can cause a world tradegy.

    asked by Please help/Dee
  247. Calculus

    If y= pie^2 then dy/dx = 2pie true or false ?

    asked by Anonymous
  248. biology

    list 2 forms of oxygen found in the atmosphere name the process by which [1]oxygen from the atmosphere is used up [2]oxygen is returned to the atmosphere

    asked by akansha
  249. math

    Olivia bought some school supplies. In the first store she spent half the money she had plus $6. In the second store she spent one third of what was left plus $6.In the last store she spent ¼ of what was left and came home with $6.How much did she start

    asked by linda
  250. chemistry

    How many mL of 4.50 M NaOH must be diluted to produce 160.0 mL of 2.50 M NaOH?

    asked by jade
  251. psychology

    what are some problems I can discuss that are created by stereotypes based on gender, race, age, and sexual orientation?

    asked by RT
  252. algebra

    The perimeter of triangle ABC is 4x+1,if 2 sides are x+2 and x-1,find the 3rd side

    asked by Precious
  253. english

    What is the meaning of address with 5 sentences

    asked by Sulaimon barakat temitope
  254. math

    Which of the following best describes the relationship between the size of a one ounce container compared to a one pound container? 1 the size of a one oz container is 16 times the size of a pound container. 2 the size of a one oz container is 1\16 the

    asked by brianna
  255. PHYSÝCS

    please any one help me for this questionnnnnnnn ý need urgently At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m

    asked by LARA
  256. Thanks Ms. Sue

    I'm going to read more about Robert Frost. He seemed to have jad quite a life. Thanks Again! Dee

    asked by Dee
  257. Mat/117 DQ2

    Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? Please provide examples. When might each method be most appropriate? Which method do you

    asked by Rose
  258. English

    I urgently need you to check these few sentences, Writeacher. Thank you very much. 1) I'm happy (pleased) to read (know) that you have found colleagues interested in setting up an email partnership among our students. 2) My students are all looking forward

    asked by Henry2
  259. algrebra

    John wants to rent a car. He knows that a friend used XYZ rental agency in the past. His friend paid $65 to drive 50 miles and $74 to drive 80 miles. What is the linear function the agency uses to find the cost?

    asked by tammi
  260. prealgebra

    26 * 0.18 = $4.68 the tip is = 4.68????/ right and if wrong about the total cost with the tip and i don't know how to get the cost

    asked by vick
  261. Web Scripting

    I'm using actionscript. when you press the mouse, you can draw (using a rectangle) and when you click the mouse it changes colors. What I need to do is have buttons so that a user can click on the button to choose the color they want. How can I do this?

    asked by Lisa
  262. Chemistry

    What is the chemical equation for AgNO3 + NaCI?

    asked by Tia
  263. bio

    Many studies have shown that extinction is a natural process that occurred long before humans ever evolved. Explain the importance of conservation genetics in the survival of endangered species. Why should we be so concerned about extinction now?

    asked by Anonymous
  264. PHYSÝCS

    please any one help me for this question The figure shows the paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 34.14 m, y = 17.75 m,

    asked by LARA
  265. Written Communication

    • Choose a topic from your personal knowledge and experience. Remember that you must utilize your first-hand experience to prove your authority to write on a topic. Purely generalized and/or factual information is not acceptable. • Capture your

    asked by Maurice Alston
  266. chemistry

    If the reaction Cl2 (g) + O3 (g) = Cl2O (g) + O2 (g) occurred in just two steps, what would be the overall order of the reaction be? a. 1 b. 2 c. 3 d. 4 e. not possible to determine from the information given i have absolutly no idea how to do this

    asked by john117
  267. Math

    Davis Thomas is a file clerk. he earns 4.10 an hour he worked 20.5 hours last week. What is his straight time pay?

    asked by Kiera
  268. Written Communication

    • Choose a topic from your personal knowledge and experience. Remember that you must utilize your first-hand experience to prove your authority to write on a topic. Purely generalized and/or factual information is not acceptable. • Capture your

    asked by Maurice Alston
  269. English

    I forgot to include these sentences. Thank you. 1)If you don't want to catch your teacher's eye, you'd better not yawn. The doctor prescribed a painkiller to be taken (is "to use" possible?) twice a day on a full stomach. 2)My leg hurts/aches/is sore/ I've

    asked by Henry2
  270. english fixed-3

    here's what i did for number 4. The world is deserting because we are taking water for granted. If people continue to waste water, the earth’s structure will change and it will be the main cause of earthquake and potentially a tsunami. and for number 5.

    asked by ESLstudent
  271. Math

    Calvin hines is a graphic designer. He earns $11.50 per hour. Last wee he worked 7 hours each day, Monday through friday. WHAT WAS HIS TOTAL PAY FOR THIS WEEK?

    asked by Kiera
  272. physics

    a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine? Please help power= work/time= 1/2 m v^2/8 1/2(1500k)(30)^2 2/8 =168750 is this correct?

    asked by TRACY
  273. algebra

    how to make a 4x4 magic sqaure which equals 18

    asked by j
  274. Math

    Can the angles 51,88, and 41 form a triangle?

    asked by Rose
  275. Math

    Ivan Reiser wa shired as a lawyer for the Bendix corporation. His annual ssalary is $51,740.00. What is his weekly salary ? Round your answer to the nearest cent.

    asked by joey
  276. trig

    Tan(cos inverse 5x)

    asked by ARIK
  277. math

    You have budgeted $1300 to have your pool cleaned this summer while you complete the rest of the yard. Dream Pools charges a onetime fee of $550 for supplies and maintenance and then $40 for each service call. Write an inequality that illustrates the

    asked by Anonymous
  278. Math

    x+y=8 x+3y=14 Please help me solve each system of equation and show your work.

    asked by Sadie
  279. Math

    Laurie is holding 6 red cards and 7 black cards. If two cards are selected at random(w/out replacement), what is the probability that the first card selected is red and the second is black?

    asked by Jane
  280. History

    How does the Chippewa Creation Story compare/contrast with the Biblical creation story?

    asked by Hailey
  281. 5th Grade Math

    ?/29 - 7/29 + 21/29 = 1 7/13 = ?/13 - 11/13 = 1 Someone help me solve two problems. THANKYOU

    asked by Nini
  282. Math -Probab.

    In a standard deck of 52 playing cards there are 13 hearts. If 3 cards are drawn from the deck ( WITHOUT REPLACEMENT, what is the probab. that all 3 cards will be hearts? which below and why? A (13/52)cubed B (13/52)(12/51)(11/50) C (13/52)(13/51)(13/50) D

    asked by Jane
  283. math

    what percent of a meter is a centimeter? explain your answer.

    asked by morgan
  284. psycology

    the meaans of travel within and between neurons is different because

    asked by bee
  285. Math

    2x+y=12 3x-y=13 Please help me solve the system of equation and show your work.

    asked by Rachel
  286. Chemistry

    Suppose that you calculated the mass percent of sand in the mixture to be 42%, though the original mixture really contained only 35% sand. How could you explain these results?

    asked by Kay
  287. science

    The words in the bank are air resistance,time, zero, inertia, mass, direction, friction, rolling friction, and less. See if I did them right and if I didn't write anything on the blank, I need help with it. THANKS!!!!!!!!!!!!!!!! 10. Speed can be

    asked by Gabby ( 5 grade)
  288. math

    If there are 32 students and 5/8 walk to school . How many walk to school. HOw is this problem worked out

    asked by jj
  289. English

    What is the best connotation for this sentence. Nila likes her chili very hot, burning, or warm.

    asked by Kelley
  290. prealgebra

    For #s 4-7 #4) is Increase 35 by 40% 35 * 1.4 = 49 #5)Increase 125 by 8% 125 * 0.08 = 10 #6) Decrease 8 by 75% 8 * 0.75 = 6 #7) Decrease 135 by 22% 135 * 0.22 = 29.7 ARE THESE CORRECT YOU HAD TO FIND THE NEW AMOUNT. ?????????????????????????

    asked by vick
  291. Math(Please check)

    (0.50M)(3.50mL) = c2(75.00) c2= 2.3e-2 Is this correct?

    asked by Hannah
  292. math 208

    (x+1x+3)=

    asked by lanie
  293. Essay Check

    My parents always told me to brush my teeth morning and night, but it was not until high school that I actually realized why I did that. So imagine my parents learned from their school and encouraged me, but if a villager living in a shanty town does not

    asked by Zero
  294. english fixed -2

    thanks for helping write teacher. i fix again my sentences and can you please look at it again. ty John Cervantes Beth Braun February 27, 2012 Blue Gold - World Water Wars 10 key things about the movie Blue Gold - World Water Wars 1. Water is the source of

    asked by ESLstudent
  295. prealgebra

    For #s 4-7 #4) is Increase 35 by 40% 35 * 1.4 = 49 #5)Increase 125 by 8% 125 * 0.08 = 10 #6) Decrease 8 by 75% 8 * 0.75 = 6 #7) Decrease 135 by 22% 135 * 0.22 = 29.7 ARE THESE CORRECT YOU HAD TO FIND THE NEW AMOUNT. ?????????????????????????

    asked by vickypoo
  296. English

    Do you capitalize mom in the phrase your mom?

    asked by Karen
  297. statistics

    a researcher is interested in comparing the effectiveness of three differnt kinds of therapy for anger problems.

    asked by caryn
  298. Human Service

    when is it inappropriate to share a hunch? Why?

    asked by Jay
  299. English

    I left out the following sentences on phrasal verbs. Thank you. 1) She was a spy and gave away secret information during the war. You'd better revise (go through is a synonym?) your maths notes before tomorrow's test. 2) The police is (are) going through

    asked by Henry2
  300. physics

    6 electric lamps connected in parallel at 100 volt explain how they are connected to operate at 200 volts without spoiling them.find the total current intensity in the circuit if the resistance of each lamp 240 Ohm

    asked by amal
  301. Science

    Where the animal first starts to deposit fat?

    asked by Jenny
  302. Finite Math

    Working on this for a couple of hours, any help? Input -output matrix F S C F .1 0 .2 S .2 .1 .4 C 0 0 .1 F= Food S=Shelter C=Clothing 1)What should the total production of the three industries be to generate a $900,000 surplus each? I gotthe following for

    asked by Anonymous
  303. algebra

    -x^3+x^2+4x-5=0

    asked by Esmra
  304. COLLEGE CALCULUS.

    i don't understand this problem Let F(x)=f(x^4) and G(x)=(f(x))^4. You also know that a^3=2, f'(a)=13, f'(a^4)=15. Find F'(a) and G'(a).

    asked by LISA
  305. math133

    1/4=3-2x-1/x+2

    asked by Anissa
  306. STATS

    The vice-president of a business firm has reviewed the records of the firm's personnel and found that 70% of the employees read The Wall Street Journal. If the vice president was to choose 12 employees at random, what is the probability that the number of

    asked by tim
  307. math

    For #s 4-7 #4) is Increase 35 by 40% 35 * 1.4 = 49 #5)Increase 125 by 8% 125 * 0.08 = 10 #6) Decrease 8 by 75% 8 * 0.75 = 6 #7) Decrease 135 by 22% 135 * 0.22 = 29.7 ARE THESE CORRECT YOU HAD TO FIND THE NEW AMOUNT.

    asked by Tori
  308. science

    How much energy is required to raise the temperature of 22.8 g of copper from 30°C to 1250°C?

    asked by science
  309. Neuroscience

    compare ionotropic and metabotropic receptor channels in both structure and function

    asked by Laci
  310. Business Communication

    Need a copy of pages 163 and 164 from Business and Administrative Communication, 8th edition

    asked by Teamguy
  311. Math

    in the diagram below,

    asked by Kristie
  312. education

    How does data collection integrate with your teaching and learning in the classroom and How do data analyses affect your instructional strategies

    asked by danie
  313. chemistry

    explain how you would develop a scheme to separate and identify ag, pb, fe,and al in a solution that might contain all four as ions

    asked by cat
  314. PHYSICS

    A car is moving at a constant velocity of 5.5m/s. How much net force is required to raise its velocity to 14 m/s in 30 seconds? Suppose the car has a mass of 150kg.

    asked by LK
  315. Math

    Transform the equation or inequality by completing the square. y^2+3x-6y-7=0

    asked by Matt
  316. PHYSICS

    A car is moving at a constant velocity of 5.5m/s. How much net force is required to raise its velocity to 14 m/s in 30 seconds? Suppose the car has a mass of 150kg.

    asked by LK
  317. math

    800 student in a class 3/4 of them ordered pizza and 1/2 ordered pepperoni toppings how many like pepperoni toppings pizza the best

    asked by terreke
  318. trig

    Name three values of theta that would result in y equal to cot times theta being undefined.

    asked by scott
  319. calculus

    I just cannot get this one. I think I have to do something with log but that's as far as I can go. 5^x=100

    asked by christian
  320. ochem

    For a Grignard reaction, if you start with 3.97 mL of pure bromobenzene and 0.733 g of 1-phenylethanone, what is the theoretical yield of 1,1-diphenylethanol? Please help.

    asked by ochem
  321. Math pleez help

    Multiply ( x-1) (2x(2)-xt5)

    asked by Pandalover
  322. Physics

    An object has a mass of 8.99KG and is moving at 2.55 m/s. How much kinetic energy does it have ?

    asked by Steve o
  323. geometry

    If the m of angle AMD =x+2y and m og angle ABC=2x-y. Find the values of x and y

    asked by ashley
  324. chem

    How much energy is required to raise the temperature of 217 g of solid mercury at its freezing point to mercury vapor at its boiling point.

    asked by science
  325. Algebra

    Find the roots of the given equation by completing the square. αx^2 + βx + δ = 0

    asked by omar
  326. maths

    Given A = (X-2 1 ) 2 X-3 is a singular matrix,find the value of x

    asked by ceasar
  327. MATH

    Indira gets 12 birthday presents. She opens 2/3 of them. how many presents does she have left to open?

    asked by ashley
  328. General Chemistry

    How do I calculate the ratio of weak base to weak acid in a methyl amine buffer solution at pH=10.645 and pH=11.645 and pH=9.645?

    asked by Nhi Song
  329. WORLD HiStOrY

    Despite the advice of her councilors, Elizabeth chose never to marry. From a political point of view, do you think her decision strengthened or weakened her position as queen? Why?

    asked by CHEYANNE
  330. math

    A student observes two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria?

    asked by Anonymous
  331. math

    Which is not equal to 2 quarts? 2c, 4 pints, 1/2 gallon or 64 fluid oz.

    asked by brianna
  332. maths

    Given that A =(X-2 1 ) 2 X-3 IS a singular matrix,find the value of x.

    asked by ceasar
  333. science

    One factor determining the effect of gravity on objects is their.....? The farther away from Earth an object gets, Earth's gravity affects it ......? Friction that occurs between the surface of around object and another surface is ........? Objects with

    asked by Gabby ( 5 grade)
  334. chemistry

    A particular reaction has an activation energy of 51.6 kJ/mol-rxn. How much faster is the reaction at 50 degrees C versus 25 degrees C? a. 2 times b. 5 times c. 3 times d. half as fast d. 20% as fast think it has something to do with the Arrhenius equation

    asked by john117
  335. tRiG/ AlGeBrA

    1) Use double-angle identities to write the following expression, using trigonometric functions of x instead of 4x. cos 4x 2) Use half-angle identities to write the following expression, using trigonometric functions of x instead of x/4. sin x/4

    asked by CHEYANNE
  336. MATH

    in the diagram below,

    asked by Kristie
  337. PHYSICS

    A car is moving at a constant velocity of 5.5m/s. How much net force is required to raise its velocity to 14 m/s in 30 seconds? Suppose the car has a mass of 150kg.

    asked by LK
  338. AStrONomY

    What contributions of Uranus were made by the Voyager 2 program?

    asked by CHEYANNE
  339. physics

    Limo kicks a ball vertically upwards from 1m above the ground at 18m/s. It rises to its highest point and then falls down, just getting caught on a branch 5.5m above the ground. (ignore any sideways movement) How long is the ball in flight?

    asked by Sally
  340. chemistry

    alculate the H3O+ concentration present in water under the following conditions. Enter your answer in scientific notation. a. [OH-] = 8.9 x 10-5 M 1.1E-10 b. [OH-] = 3.8 x 10-3 M 2.6E-12 c. [OH-] = 4.8 x 10-12 M 2.1E-3

    asked by krystal
  341. language arts

    i'm doing a project on choosing some "status symbols" popular in society today. one status symbol i did was the restaurant called cheesecake factory, how do i explain how it is popular/important today?

    asked by janet
  342. maths

    Prove the following trigonometric identities (i)(1+cotx)^2 +(1-cotx)^2=2cosec^2x (ii)cos(270degrees+theta)/cos(360degrees -theta)

    asked by tembo
  343. maths

    solve the following equation for the value of theta between 0 degrees and 360 degrees.For 5 + 3cosec^2theta =8

    asked by njovu
  344. algebra2

    Can you explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c. Can there be more than one way to factor a problem like this? can you please show it in written word and step by step?

    asked by kay
  345. math

    Jerry read 180 pages in 3h. Peggy read 220 pages in 5h. Peggy said that they read at the same rate. Is she correct?

    asked by brianna
  346. math

    There is 10 white,9 black and 7 red balls in a bucket,In how many ways we can select one or more balls?

    asked by Tapan
  347. Math Help Please

    Would someone please be kind enough to explain steps for this one. Thank you. If m and n are positive integers and m is 250% of n, what percent of m is 2n?

    asked by Help Please
  348. physics

    If the length of the wedge is not given then what should we answer about that a partical is thrown horizontly hit the wedge or not?

    asked by Vinit
  349. statistics

    A SINGLE CARD IS SELECTED FROM A STANDARD DECK OF 52 CARDS. IF YOU KNEW THAT THE CARD WAS A PICTURE CARD, WHAT IS THE PROBABILITY THAT IT WAS ALSO RED?

    asked by jade
  350. Science

    State the two broad classes of wood and describe them.

    asked by Sasha
  351. Calculus

    flickr.(dotcom)/photos/77304025@N07/6782789880/

    asked by Fatih
  352. math

    Dvds are priced at 2for $15. Garret wants to buy 5 DVD. What equation can be used to find s, the total price of garret DVD?

    asked by brianna
  353. trig

    Choose the percent increase or decrease for the before and after measurements: 12 (before) and 12 (after) a) not given b) increase of 30% c) decrease of 25% d) increase of 25%

    asked by Rosa
  354. math

    The second place finisher in the canoe race lost to the winner by only 1/12 of the winner,s time. If the winning time was 3 1/5 minutes,by how many seconds did the runner up lose?

    asked by Abby
  355. MATH

    find the equation of the line tangent to f(x)=2x^3-x^2+1 at x=2. write in point slope form

    asked by Katie
  356. spelling

    What kind of sentence can I use with the word vegetation?

    asked by Gabby ( 5 grade)
  357. math

    A customer is buying a $100 drill and two $15 drill bit sets. The customer uses a gift card worth $50 to pay for a portion of their bill. How much cash will the customer pay (before taxes)?

    asked by george
  358. math

    How do you figure the next geometric sequence of 90,18,3.6,073

    asked by keke
  359. health

    the messages you receive from others that indicate who they think you are or what they think you are like.

    asked by cheyanne
  360. Math (Area)

    I need help on where to begin with this problem. You are installing a new deck around your pool. The pool is rectangular with the dimensions 8m by 4m. The deck will surround the pool and will have a width by 2m. What is the area of the deck? I know that

    asked by Ali
  361. Math

    flickr.(dotcom)/photos/77304025@N07/6782789880/ Create a function that closely gives the graph given below. The function may be a piecewise function but it does not necessarily have to be a piecewise function. a. Give a brief narrative explaining what you

    asked by Fatih
  362. PHYSÝCS

    At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the

    asked by help
  363. Simple how-to to do in french?

    For my french class i have to do alittle how-to for around 5 min. It has to be something I can explain to the class in french and then the rest of the class make or participate in. I am in french 4. I was thinking of making a unique type of paper airplane

    asked by rebekah
  364. Spanish-Please check SraJMcGin

    When I say four thousand houses in Spanish, is it gender dependent like cuatra mil ollas or do I simply say cuatro mil ollas. I know the numbers from 200-900 are gender dependent but I'm not sure when you get to the four in front of thousand houses because

    asked by Mia
  365. health

    generally having a positive outlook, being comfortable with self and others, and being able to meet life's challenges.

    asked by cheyanne
  366. MATH HELPPPP

    in the diagram below,

    asked by Kristie
  367. stats

    please help How do you construct a pay of table?????? . Dr. Mike Adams, a local brain surgeon, believes there is a lot of money to be made renting apartments to students here in Alamosa. He is considering constructing one, two, or possibly three apartment

    asked by tim
  368. chemistry

    The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which

    asked by john117
  369. health

    what are five signs of good mental health?

    asked by cheyanne
  370. math

    A customer uses a $20 bill at a self check-out register to pay for products totaling $14.50. The customer is concerned they did not receive the proper change. How much money should they have received back from the automated register?

    asked by Anonymous
  371. math

    A driver is headed north on a long, straight highway and sees this sign: Nearville 150 miles Farville 160 miles Then, surprisingly, an hour later she sees this apparently inconsistent sign on the same highway: Nearville 100 miles Farville 109 miles How can

    asked by Anonymous
  372. math

    Transform the equation or inequality by completing the square. x^2+y^2+4x-10y+20

    asked by Bobby
  373. algebra

    A sign in a local department store says, “All Items 30% off Marked Price.” Form a function and then use it to determine how much one has to pay for each of the following marked items: a $65 pair of shoes, a $48 pair of slacks, and a $15.50 belt.

    asked by tori
  374. maths

    If the side of triangle are equal, and it was made by placing beads touching it other, how many beads would you use if there are 3 beads on each side?

    asked by Samantha
  375. PHYSÝCS

    At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill with a homemade catapult. They aim for a point that is 31.1 m away and at the same height from which the catapult releases the

    asked by please please please helpppp
  376. Science

    what are the positives of NOT having technology ?

    asked by Baily
  377. math

    what is one fourth of 10?

    asked by unknown
  378. mental health

    give two examples of negative feedback and two examples of positive feedback.

    asked by cheyanne
  379. math

    Ray makes an array that has 4 rows of 4 counters. He wants to make 2 more arrays using the same numbers of counter. Than he wants to move 1. What 2 arrays can he use

    asked by emoni
  380. chemistry

    If 180.0 mL of 0.270 M NaOH are mixed with 230.0 mL of 0.500 M NaOH, what is the molarity of the final solution? Assume the volumes are additive.

    asked by jade
  381. yargo

    a garden is shaped like an x. there is a right angle at each corner of the garden and each side of the garden measures 40 feet long. what is the area of this garden?

    asked by angie
  382. PHYSÝCS

    please any on help me for this question ý need urgently. The position of a particle moving along the x-axis is given by x = 3.49t2 – 2.21t3, where x is in meters and t is in seconds. What is the position of the particle when it achieves its maximum

    asked by LARA
  383. 7th grade science

    What is a very good website to find instructions for newly formed cells on how to carry cytokinesis? Please help!!! Thank you!!

    asked by saranghae12
  384. Pre-Calc

    Fill in the blank; •In the process of polynomial division (Divisor)(Quotient)+_______=_______ •When a polynomial function f is divided by x-c, the remainder is _______. •If a function f, whose domain is all real numbers, is even and if 4 is a zero of

    asked by nelly
  385. calculus

    A light is attached to the wall of a building 64 feet above the ground. A ball is dropped from the same height, but 20 feet away from the side of the building. The height y of the ball at time t is given by y(t) = 64 − 16t 2 . How fast is the shadow of

    asked by anonymous
  386. math

    Five members of a family are standing in line at a carnical ride.A girl is at the front and an adult is at the back. Tom is 3rd in line.Which list could be the order of the line from first to last? A.Gina,Paul,Mrs.Moore,Tom,Mr.Moore

    asked by Colton
  387. statistics

    if the average of 80, 95, 100, 75 and n is 85, what is n?

    asked by Sergio
  388. statistics

    Suppose 100 different researchers each did a study to see if there was a relationship between coffee consumption and height. Suppose there really is no such relationship in the population. would you expect any of the researchers to find a statistically

    asked by Piya
  389. Algebra

    Evaluate T = 50m + 300, for the total amount of money Susan has after 5 months

    asked by Peppin
  390. mlk

    how did jane goodall solve the problem of living alone in the jungle

    asked by ronald
  391. Physics

    What volume of aluminum would be needed to balance a 1.00 cm^3 sample of copper on a 2 pan laboratory balance?

    asked by Abby
  392. Math

    Kevin Brownstein is a truck driver. He ears $10.25 per hour. He worked 37 hours last week. What is his straight time pay?

    asked by Sakiera
  393. Mathematics

    What percentage is 2/27?

    asked by Bob
  394. Math

    y=5x-3 y=2x+6 Please help me solve each system of equation and show your work thanks

    asked by Haylie
  395. Grammar

    I am studying my pronouns right now for sixth grade, while i was looking over the words,i saw that the word THAT is a pronoun, how can it be a pronoun?

    asked by Losa
  396. why will no one answer? chem

    The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which

    asked by john117
  397. statistics

    Science scores for HS seniors in the US are normally distributed with a mean of 77 and a standard deviation of 7. Students scoring in the top 4% are eligible for a special prize. What is the approximate cutoff score a student must get in order to receive

    asked by taylor
  398. grammar

    i have a third grader and need help with what the following stand for S,F,SCS AND CD

    asked by chrystal