Questions Asked on
January 17, 2011

  1. chemistry

    three student chemists measured 50.0 mL of 1.00 M NaOH in separate Styrofoam "coffee cup" calorimeters ( Part B). Brett added 50.0 mL of 1.10 M HCI to his solution of NaOH; Dale added 45.5 mL of 1.10 m HCL 9 eqaul moles) to his NaOH solution. Lyndsay added

    asked by Daniel
  2. mat h

    ms. buxx invested a total of $2000 in two savings accounts. The first account pays 3% interest per year and the second account pays 5% interest per yera. If the interest from both accounts totals $84 per yera, how much is invested in each account?

    asked by kevin
  3. chemistry

    On average, earth's crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15.0g of aluminum, how many cans could be made from one ton of the Earth's crust?

    asked by Maria
  4. physics

    A motorist drives along a straight road at a constant speed of 15.0 m/s. just as she passes a parked police officer,the officer starts to accelerate at 2.00 m/s^2 to overtake her. assuming the officer maintains this acceleration, a) determine the time it

    asked by kevin
  5. Physics

    Two charged particles exert an electrostatic force of 27 N on each other. What will the magnitude of the force be if the distance between the two charges is increased to three times the original distance?

    asked by Taylor
  6. Calculus

    If a ball is thrown in the air with a velocity 44 ft/s, its height in feet t seconds later is given by y = 44t - 16t2. (Round your answers to one decimal place.) (a) Find the average velocity for the time period beginning when t = 2 and lasting 0.5 second.

    asked by Ethan
  7. chemistry

    An explosive whose chemical formula is C3H6N6O6 produces water, carbon dioxide, and nitrogen gas when detonated in oxygen. write the chemical equation for the detonation reaction of this explosive.

    asked by Maria
  8. chemistry

    Titanium is used in airplane bodies because it is strong and light. It has a density of 4.55 g/cm^3. If a cylinder of titanium is 7.75 cm long and has a mass of 153.2 g, calculate the diameter of the cylinder. (V=pi*r^2*h, where V is the volume of the

    asked by Maria
  9. physics

    A 15kg model plane flies horizontally at a constant speed of 12.5 m/s and the kinetic energy is 1171J and the potential energy is 3000J what is the new horizontal velocity? Please show work and explain.

    asked by Kim
  10. chemistry

    What amount of water in liters could be heated from 20.0 to 42.0 by the car's energy? (One calorie raises the temperature of 1 of water by 1.)

    asked by Anonymous
  11. physics

    A box of mass 65 kg hangs motionless from two ropes, as shown in the diagram above. The angle is 40 degrees. Choose the box as the system. The x-axis runs to the right, the y-axis runs up, and the z-axis is out of the page. What is the y-component of the

    asked by freddy
  12. Physics

    Two points charges of 2uC and -6uC are located at the position(0.0)m and (0.3)m.Calculate the total electrical potential at the point (4.0)m due these two charges.

    asked by Joel
  13. chemistry

    Use delta ( + or - ) to show direction of expected polarity? for each of the bonds indicated. do you use electronegative numbers? how? I know the answers (i have the book) i just want to know how im supposed to know it for a test. a) H3C - CL b) H3C - NH2

    asked by jessica
  14. Geometry

    If the boy is 4' 9" tall and his shadow is 6 ft. and the shadow of the flagpole is 19 ft., determine the height of the flagpole (to the nearest tenth).

    asked by Ivan
  15. physics

    Consider the 45 N weight held by two cables shown below. The left-hand cable is horizon- tal. a) What is the tension in the cable slanted at an angle of 50? Answer in units of N. 007 (part 2 of 2) 10.0 points b)What is the tension in the horizontal cable?

    asked by cole
  16. physics

    Calculate the torque about the front support of a diving board, exerted by a 70 kg person 3.0 m from that support. (Take the positive direction to be clockwise.)

    asked by Bill
  17. chemistry

    Carbon disulfide,CS2, is a volatile, flammable liquid. It has a vapor pressure of 426.6 mmHg at 29.8C and 760.0 mmHg at 46.5C. What is the heat of vaporization of this substance?

    asked by patty
  18. Physics

    Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 s, due to human reaction time at the start and stop moments. What is the percent uncertainty of a handtimed measurement of (a) 5 s, (b) 50 s, (c) 5 min?

    asked by Ashley
  19. 5th math

    If a spinner is divided into 8 congruent sectors what is the sample space ? there a 2 1's, 2's. 3's and 4's that make up the segments

    asked by jill
  20. chemistry

    The solubility of NaCl in water is 35.7 g NaCl/100 g H2O. Suppose that you have 500.0 g of NaCl. What is the minimum volume of water you would need to dissolve it all? The density of water is 1.0 g/mL.

    asked by Maria
  21. home economics

    examples of career in home economics

    asked by karishma
  22. physics

    a boy with a mass of 60kg climbs a 10m vertially up a ladder. A) how far did he travel? B) how much work is done? C) what are the energy changes here?

    asked by Anonymous
  23. physics

    A uniform ladder of mass m and length L leans at an angle θ against a frictionless wall. If the coefficient of static friction between the ladder and the ground is 0.43, what is the minimum angle at which the ladder will not slip? Do i use the equation

    asked by Sydney
  24. Physics

    Two charged particles exert an electrostatic force of 27 N on each other. What will the magnitude of the force be if the distance between the two charges is increased to three times the original distance?

    asked by Taylor
  25. physics

    Here is the problem and answers. how do i reach the answer? A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 325 km/h in a semicircular arc with a radius of 198 m. Determine the tangential acceleration of the car

    asked by hopsy
  26. physics

    Diego pulls a 4.5 kg sled across level snow with a force, F, of 200 N on a rope that is 35.0° above the horizontal. If the sled moves a distance of 67.5 m, how much work does Diego do?

    asked by taylor
  27. chemistry

    Given the following equation: Mg(s)+2HCl(aq) goes to MgCl2(s)+H2(g) How many grams of hydrogen chloride (HCl) are needed to produce 200g of hydrogen H2?

    asked by Jasmine
  28. physics

    A block weighing 6.8 N requires a force of 2.9 N to push it along at constant velocity. What is the coefficient of friction for the surface?

    asked by cole
  29. alg 2

    a rectangle is to be inscribed in a isosceles triangle of height 8 and base 10. Find the greatest area of such rectangle.

    asked by keeter
  30. math

    a color called "passion purple" is made by mixing 5 oz of red paint with 9 oz of blue paint. what percent of passion purple is blue paint?(round to the nearest percent.)

    asked by Anonymous
  31. social studies

    ineed the location of egypt this is what i wrote so far, Ancient Egypt, civilization that thrived along the Nile River in northeastern Africa for more than 3,000 years, from about 3300 BC to 30 BC. It was the longest-lived civilization of the ancient

    asked by social studies
  32. chemistry

    Methanol, CH3OH, a colorless, volatile liquid, was formerly known as wood alcohol. It boils at 65.0C and has a heat of vaporization of 37.4kj/mol. What is its vapor pressure at 39.0C?

    asked by patty
  33. Phsyics

    Is an object with a temperature of 273.2 K hotter than, colder than, or at the same temperature as an object with a temperature of 0'C? I don't know how to convert kelvin to celcius.

    asked by Abida
  34. Math

    4. Vanna has just financed the purchase of a home for $200 000. She agreed to repay the loan by making equal monthly blended payments of $3000 each at 9%/a, compounded monthly. c. How long will it take to repay the loan? d. How much will be the final

    asked by Michelle
  35. Physics

    A proton is released from rest in a uniform electric field which is directed along the x axis and of magnitude E=2*10exponent5 V/m.The proton undergoes a displacement from point A at the origin to point B at x=0.2m.What is the change in the potential

    asked by Joel
  36. chemistry

    A sample of crude oil has a density of 0.87g/mL. What volume in liters does a 3.6-kg sample of this oil occupy?

    asked by Maria
  37. math

    6. A lottery offers two options for the prize. Option A: $1000 a week for life Option B: $ 600 000 in one lump sum. The current expected rate of return for large investment is 7%/a, compounded weekly. a. Which option would the winner choose if s/he expects

    asked by Chelsea
  38. annuities

    8. Mary would like to save $10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the end of each week in a savings account that pays 12%/a, compounded monthly, to meet her goal? a. What type of annuity is this? c.

    asked by Chelsea
  39. magee

    Whenever you use a inclined plane a. deis ezual to dr b. dris zero, c. deis less than dr, d. de is greater than dr

    asked by Bet
  40. Physics

    How much heat must be added to 60 g of ice at 0 C to melt the ice completely?

    asked by Abida
  41. St.Nicholas Adult High School (English)

    the sentence'15%of adult height is added during teen years." Ineed response and explaination. I'am so confused about that question.

    asked by Mary
  42. Calc

    A mass is oscillating on the end of a spring. The distance, y, of the mass from its equilibrium point is given by the formula 2zcos(14πwt) where y is in centimeters, t is time in seconds, w and t and are positive constants. What is the furthest distance

    asked by Stephanie
  43. Psychology

    identify the major similarities and differences that exists between the American and European traditions of psychology. Please post a response to this message that includes at least two similarities and two differences

    asked by Sarah
  44. Chemistry Lab

    Complete the table below: The hydrogen emission spectrum has four series (or sets) of lines named Balmer, Brackett, Paschen, and Lyman. Indicate the energy (infrared, ultraviolet, or visible), the nf value for each series, and all possible ni values up to

    asked by Shawn Tabrizi
  45. math

    Camilla has 3 times as many points as Lynn. Lynn has 5 more points than Kim. Camilla, Lynn, and Kim combined have twice as many points as Jasmine. If Jasmine has 25 points - how many points do the three other girls have?

    asked by Jake
  46. math

    Omar wants to buy a double scoop ice cream cone. His favorite flavors are vanilla, strawberry, raspberry and chocolate. A combination with both scoops of raspberry represents ___ out of ___ possible combinations.

    asked by meghan
  47. chemistry

    Assume that the kinetic energy of a 1600 kg car moving at 125 km/h is converted entirely into heat.How many calories of heat are released?

    asked by Anonymous
  48. alg 2

    a rectangle is to be inscribed in a isosceles triangle of height 8 and base 10. Find the greatest area of such rectangle.

    asked by keeter
  49. alg 2

    a rectangle is to be inscribed in a isosceles triangle of height 8 and base 10. Find the greatest area of such rectangle.

    asked by keeter
  50. Calc

    A mass is oscillating on the end of a spring. The distance, y, of the mass from its equilibrium point is given by the formula 2zcos(14πwt) where y is in centimeters, t is time in seconds, w and t and are positive constants. What is the furthest distance

    asked by Stephanie
  51. alegebra 2

    12x+20y+15z=-60

    asked by alex
  52. Chemistry Lab

    Determine the ionization energy of a hydrogen atom (in kJ/mol) if the electron is in its ground state. (Hints: Use the Rydberg equation, remember E=hc for a single H atom, and R=109678x10–2nm–1 ) _____ kJ/mol Thanks :)

    asked by Shawn Tabrizi
  53. Calculus

    The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May it cost her $410 to drive 300 mi and in June it cost her $470 to drive 600 mi. (a) Express the monthly cost C as a function of the distance driven, d, assuming

    asked by Ethan
  54. history

    What is Johnson’s thesis regarding Sam, the Market Revolution, and antebellum American society in the book Sam Patch?

    asked by Lilly
  55. Math

    A class has 2 rows of 8 seats each. there are 14 students 4 of whom always sit in the front row and 5 of whom always sit in the back row. How many ways can the students be arranged?

    asked by Esther
  56. Algebra

    On three consecutive passes, a football team gains 5 yards, loses 31 yards, and gains 29 yards. What number represents the total net yards?

    asked by Terry
  57. physics

    Water is running out of a faucet, falling straight down, with an initial speed of 0.50 m/s. At what distance below the faucet is the radius of the stream reduced to one-half its value at the faucet?

    asked by john
  58. Chemistry

    How much heat (in BTU) would be required to heat and vaporize 100 lb of water from 25°C to saturated steam at 1 atm? Assume heat capacity is constant at 1 BTU/lb-°F and the latent heat of vaporization is 1,000 BTU/lb. Also, what is the temperature of the

    asked by Jini
  59. biology

    which process most likely caused the change in CO2 level in the flask over the lasy 37 minutes?

    asked by jacob
  60. math helper plese

    2 isosceles triangles have the same height. The slopes of the sides of triangle A are double the slopes of the corresponding sides of triangle B. How do the lengths of their bases compare? A. The base of A is quadruple that of B. The base of A is double

    asked by Kelly
  61. Physics

    Two forces act concurrently on a point P. One force is 60nt due east. The second force is 80nt due north. (a) Find the magnitude and direction of their resultant. (b) What is the magnitude and direction of the equilibriant?

    asked by Elise
  62. Physics

    How much heat is required to raise the temperature of 70 g of water from 20 C to 80 C?

    asked by Abida
  63. PHYSICS II

    A uniform electric field of magnitude 3.00×10^4 N/C makes an angle of 37 degrees with a plane surface of area 1.40×10^−2 m^2. What is the electric flux through this surface? i got 321 using the formula electricflux = E A Cos(theta), but it's wrong.

    asked by Cassie
  64. Pattern

    Suppose you plan to save $12 per week.You have already saved $7.50.In how many weeks will you have saved at least $100?

    asked by Anonymous 1
  65. chemistry

    The heat of vaporization of a substance is 2900 J/g at its boiling point of 313C. How much of this substance can be vaporized if 58700 J of energy are available?

    asked by dave
  66. physics - electric field

    a point particle with charge q= 4/5 uC is placed on the x-axis at x=-10cm. A second particle of charge Q is now placed on the x-axis at x = 25cm, and its found that the electric field at the origin is zero. Find Q.

    asked by J Velji
  67. calculus

    A bug walks along the circle x^2 + y^2 = 4. When it is at the point (1, (3)^1/2)), dx/dt = 2. Find dy/dt at this instant.

    asked by Ryan
  68. physics

    An animal-rescue plane due east at 50 meters per second drops a bale of hay from an altitude of 62 meters. The acceleration due to gravity is 9.81 meters per second squared. If the bale of hay weighs 191 newtons what is the momentum of the bale the moment

    asked by Lauren
  69. calculus

    A bug walks along the circle x^2 + y^2 = 4. When it is at the point (1, (3)^1/2)), dx/dt = 2. Find dy/dt at this instant.

    asked by Ryan
  70. calculus

    Put the function P=15(1.1)^t in the form Pe^kt

    asked by Lauren
  71. Chemistry-DrBob222

    A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of water the resulting

    asked by Patrick
  72. Algebra II

    The base of a triangle is 8 cm greater than the height. The area is 24cm^2. What is the base and height?

    asked by Nancy
  73. physics

    a 150g-iron ball at 95 Celsius is dropped into a cavity in a block of ice

    asked by ice
  74. science

    if an acid has a pH of 1.1 what is the hydrogen ion concentration of the solution expressed in scientific notation to 3 significant figures, for my answer can it be written 1 x 10^-1.1 mol dm3? or can you not use decimals in the to the power of so should i

    asked by annie
  75. St.Nicholas Adult High School (English)

    the slogan "got milk'. Ido not the what this question means. can tell me the answer please thank you,

    asked by Mary
  76. MATH

    Mike wants to buy a snowmobile. His parents decide to lend him $9 000 at 10%/a, compounded monthly, if he agrees to repay the amount by making equal monthly (at the end of the month) payments for five years. d. Write the series that represents the present

    asked by Michelle
  77. math

    a color called "passion purple" is made by mixing 5 oz of red paint with 9 oz of blue paint. what percent of passion purple is blue paint?(round to the nearest percent.)explain how you got the answer

    asked by Anonymous
  78. physics

    Identical +3.07 µC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be fixed to one of the empty corners, so that the total electric potential at the remaining empty corner is 0 V?

    asked by mackenzie m
  79. Math

    Mary drove from Amity to Belleville at a speed of 50 mph. On the way back, she drove at 60 mph. The total trip took 4 2/5 hours of driving time. Find the distance between these two cities. Any help would be greatly appreciated! =]

    asked by Ashley
  80. chemistry help

    a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated containers. one hour later, the two containers are opened and the temperture of each substance is measured. the aluminum has

    asked by Sammy
  81. calculus

    A cylindrical metal can with an open top is to be constructed. the can must have a capacity of 24pie cubic inches. the metal used to contruct the bottom of the can costs 3 times as much as the metal in the rest of the can. Find the dimensions(radius and

    asked by jose
  82. science

    What was Hippocrates famous for?

    asked by alicia
  83. Chemistry

    See bottom Patrick A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of

    asked by Patrick
  84. science

    How do you improve the reactivity of a metal which does not easily react with water?

    asked by Sasha cee
  85. physics

    a tennis ball when thrown from a height 2m horizentally,it touchs the net at a distance 15m and hits the grownd at a distance 25m . what is the heigth of the net?

    asked by amrita roy
  86. chemistry

    Assume that the kinetic energy of a 1600 car moving at 125 is converted entirely into heat.How many calories of heat are released?

    asked by Anonymous
  87. Math

    How many possible regular polyhedrons (platonic solids)?

    asked by lez
  88. math

    25

    asked by saleh
  89. algebra

    Cat Years 1 3 4 6 7 Human Years 13 33 43 63 73 What is the meaning of the slope? Write the slope-intercept form of the equation for the line of fit. Use linear interpolation and your line of fit to estimate the number of human years which will correspond

    asked by Joshua
  90. Math

    In a mathematics olympiad there are 20 finalists. In how many ways can three equal prizes be awarded, assuming that two prizes cannot be given to one finalist? In how many ways can a first, second and a third place be awarded? (I understand that

    asked by Jen
  91. calculus

    Suppose that the sales at Borders bookstores went from 70 million dollars in 1989 to 415 million dollars in 1993. What is the continuous percent growth rate, per year, of sales?

    asked by Alyssa
  92. Math

    The length of a rectangle is twice its width if the area of the rectangle is 200 m squared, find its perimeter.

    asked by Joseph
  93. MaTh = Algebra = help

    Solve this system of linear equaiton by an algebraic method. So If I had to solve this the elimination method way, how would I do it? x-2y = 10 3x-y = 0

    asked by Rihanna
  94. social studies

    port cities sutch as boston philadelphia and new york make the northeast a?

    asked by pam
  95. Physics

    a person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the

    asked by Sara
  96. math

    what is the solution sets of the following a) 2x^2-7x-5 b) 5y^2-16y+3 c) 4y^2+5y-6 d) 10x^2-13x+4 e) 12y^2-11y-5 f) 10c^2-21c+9 g) 3m^2+5m-2 h) 12x^2+19x+5

    asked by Mohamed shiko
  97. com

    what would be the verb and its tense: Successful financial planning can be improved through good education.

    asked by carla
  98. Psychology

    is there a difference betweeen mentally handicapped and mentally retarted?

    asked by Anonymous
  99. english

    what does metaphor mean

    asked by shaquana
  100. chemistry

    Mercury has a density of 13.6 g/mL. What is the mas of 4.72 L of mercury?

    asked by Maria
  101. Statistics for the Behavioral and Social Sciences

    Using a t test for dependent means based on .05 significance level, what is the power of each studies. Study Effect size N Tails (a) Small 20 one (b) Medium 20 one (c) medium 30 one (d) medium 30 two (e) large 30 two

    asked by Barbara Pratt
  102. Calculus

    log3 x-log3(1-x)=3

    asked by Zukii
  103. Math

    Please help me with this If 2/3 of N is 4, then 1/2 of N is:

    asked by Becki
  104. math(algebra 1)

    how do u answer this? please step by step *graph and check to solve the linear system y=-x+3 y=x+1 Thank you very very much!!! :)

    asked by please i need help!!! i dont get it
  105. 5th grade math

    how many square feet are needed to cover one square yard? would it be 108 sq ft also would .26 rounded to the nearest hundredth be .30

    asked by jill
  106. geometry

    Triangle PQR has vertices P(0,12) Q(7,11) ans R(-2,2) Find the eaquation of the triangles median through point Q

    asked by timmy
  107. Math grade7

    Meagan bought a book for $12.00, received an allowance of $15.00, paid back a loan of $7.00, bought lunch for $8.50, earned $8.00 raking leaves, and found $2.00. She now has $22.25. How much did she start with? Help me please. Thank you!

    asked by pretty
  108. PHYSICS II

    When two identical ions are separated by a distance of 4.0×10^−10 , the electrostatic force each exerts on the other is 5.7×10^−9 . How many electrons are missing from each ion? what i did was used coulombs law to find the value of q1 and q2 , so

    asked by Cassie
  109. chemistry

    Caluclate the total mass of copper needed to react with 100g of iodine to make 512g of copper(ii) iodide. PLEASE work it out for me idk how to do it ?

    asked by naseeb
  110. idk

    How many moles of carbon tetrachloride are in 51.0 grams?

    asked by idk
  111. English

    The teacher will talk about homeless in Florida. Or is it better to write it this way? The teacher will speak about homeless in Florida.

    asked by M
  112. Math

    Kate's plane leaves at 3:35 P.M. She has to check in 2 h and 35 min to get to the airport from her home. Kate must first drop off her dog, Fido, at her friend's house next door. She wants to spend 45 min talking to her friend. What is the latest time she

    asked by pretty
  113. Math

    What is the circumference of a circle with a diameter of 10 m.

    asked by nando
  114. Maths

    x+2 2x-1 3 - 5 = 5 Note: x+2 is on top of 3 2x-1 is on top of 5 and they r like a fraction.

    asked by Shivi
  115. grade nine space

    What is the difference between the terms rotation and revolution? I need to use the Earth to support my answer.

    asked by peyton
  116. science

    Can you give me awebsite about phase change?

    asked by jhon
  117. Linear Algebra

    Express the solutions of the following systems in terms of the free variables: x1 + 3*(x2) - 2*(x3) + 2*(x5) = 0 2*(x1) + 6*(x2) - 5*(x3) - 2*(x4) + 4*(x5) - 3*(x6) = -1 5*(x3) + 10*(x4) + 15*(x6) = 5 2*(x1) + 6*(x2) + 8*(x4) + 4*(x5) + 18*(x6) = 6

    asked by Linus
  118. MATH HELP

    A line with an undefined slope passes through the points (-2,1) and (p, q). Which of the following points could be (p, q)? A. (1,0) B. (0,1) C. (0,-2) D. (-2,0) Help Me, I do not know how to figure this out????? A person tried helping me with this, but I

    asked by Anonymous
  119. Science

    How are weathering and erosion related?

    asked by Clarisse
  120. algebra

    provide me with a radical expression to simplify

    asked by ella
  121. math

    Thank you for your help :) "The piecewise function f(x)= n(x^3)-x______when____x(or=to)1 is differentiable everywhere. What is n? If you could explain step by step how to do this that would be great because I just do not see how to do this problem...thank

    asked by APPRECIATIVE STUDENT
  122. physics

    A cylindrical glass is 6cm wide. When you look from above at an angle you see the edge of the bottom of the glass. When the glass is then filled with water (1.33) you see the center of the bottom of the glass. How tall is the glass?

    asked by sandhu
  123. physics - electric field

    a point particle with charge q= 4/5 uC is placed on the x-axis at x=-10cm. A second particle of charge Q is now placed on the x-axis at x = 25cm, and its found that the electric field at the origin is zero. Find Q.

    asked by J Velji
  124. literature

    in a pair of silk stockings the silk stockings are a symbol of

    asked by Anonymous
  125. money and banking

    Consider a coupon bond that pays $105 every year and repays its principal amount of $1,500 at the end of 7 years

    asked by Anonymous
  126. physics

    A lawn roller is pushed across a lawn by a force of 127 N along the direction of the handle, which is 22.5° above the horizontal. If 64.3 W of power is developed for 90.0 s, what distance is the roller pushed?

    asked by taylor
  127. math

    Have to draw a parallelogram that is not a rectangle with a base of 6cm and a hieght of 4cm

    asked by kris
  128. Math

    What is the circumference of a circle with a diameter of 10 m.

    asked by peter
  129. physics

    A novice golfer on the green takes three strokes to sink the ball. The successive displacements are 4.00m north, 2.00m northeast, and 1.00m at 30.0 degrees west of south starting at the same initial point, an golfer could make the hole in what single

    asked by joe
  130. Calculus

    lnx+ ln (x+3)= 2ln2

    asked by Zukii
  131. Linear Algebra

    For which values of 'a' will the following system have no solutions? Exactly one solution? Infinitely many solutions? x + 2y - 3z = 4 3x - y +5z = 2 4x + y + (a^2-14)z = a+2

    asked by Linus
  132. biology

    Why might people in the United States be more likely to be malnourished as compared to undernourished? What is the difference between the two and why is this important to know?

    asked by Anonymous
  133. Calculus

    (3x-4)e^x2-6=0

    asked by Zukii
  134. English

    Need help in starting my paper on where to start, websites to research from: •Prepare a 700- to 1,050-word paper examining the effect of legal, safety, and regulatory requirements on the human resource process as they relate to the following statement:

    asked by Shanny
  135. chemistry

    A girl is celebrating her seventh birthday. Each guest is served one large slice of chocolate cake, a hamburger, French fries, and some oranges. Identify the food groups mentioned above. If one slice of chocolate cake contains 35g of carbohydrate, 15g of

    asked by sheila
  136. Math

    Solve integration using u substitution of (x+1)sqrt(2-x)dx

    asked by Hannah
  137. business

    Which of the following statements is generally not true about state intermediate appellate courts? A. Appellate court decisions are final and further appeal is not possible. B. The appellate court reviews the record of the trial court. C. The appellate

    asked by Meh
  138. physics

    The rafters of a roof meet at an angle of 120 degrees. What force is exerted along the rafters by an object weighing 6000nt suspended from the peak?

    asked by Elise
  139. Algebra 2

    George is 5 times as old as Heather. In 4 years he will be 3 times as old how old are both of them?

    asked by Michaela
  140. Physics

    if a ball is thrown straight upward and is caught 5s after being thrown,how fast must it have been going when it left the person s hand?help

    asked by Joel
  141. trig

    A ladder leans against a house at a point 19 feet high. The ladder is 25 feet long. What is the measure of the angle formed by the ladder against the house?

    asked by Abram
  142. social studies- geography

    75% of the active volcanoes are found along the west coast of N. America and east coast of Asia to New Zealand and is often called:

    asked by janet
  143. Comm215

    In this problem: Sally told Janice that she made the honor role. __ Pronoun shift in number __ Pronoun shift in person __ Ambiguous reference __ No error What does ambiguous reference mean?

    asked by Amber
  144. Chemistry Lab

    Description of the process from problem one: Please help me fill in the blanks :) The _______ makes a transition from a _______ energy orbital to a _______ energy orbital resulting in the_______ of a photon.

    asked by Shawn Tabrizi
  145. chemistry

    a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated containers. one hour later, the two containers are opened and the temperture of each substance is measured. the aluminum has

    asked by Sammy
  146. Math (Algebra 2)

    Use long division to find the quotient and remainder when f(x)= 15 x^4 - 9 x^3 - 18 x^2 + 24 x + 18 is divided by g(x)= 3 x + 1

    asked by Gary
  147. calculus

    rotate the axes and eliminate the xy term of 3(x^2)+2xy+3(y^2)-8

    asked by maddie
  148. math

    3L+2k = 45

    asked by zoey
  149. chemistry help

    a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated containers. one hour later, the two containers are opened and the temperture of each substance is measured. the aluminum has

    asked by Sammy
  150. economics

    what are the non-monetary benefits of growing tobacco, of working as a plumber's assistant, and of working as a carpenter during the spring and summer and storing travel trailers for a local campground and selling oysters during the fall and winter?

    asked by Melissa
  151. Math

    The morrison family bought a car for $22,000 which was financed at $600 per month for 40 months. The down payment was $3,000. What is the installment price? What is the financial charge and amount financed?

    asked by Princess
  152. Algebra 2

    A big beach towel has a width that is 3 feet less then it's length. If the towel's area 28 square feet, what is it's length?

    asked by Neli
  153. Chemistry

    "The analyzer said that at 20degreesC the unknown gas was 82.8% carbon by weight and 17.2% hydrogen. The analyzer also diffused the gas through a special apparatus and measured the rate of its diffusion compared to how fast oxygen gas diffused under the

    asked by Anonymous
  154. Calculus

    factor 7x+42

    asked by Ethan
  155. Math-Algebra

    Solve: 3x-2y=10 2x+3y=-2 Graph: Substitution: Elimination: Show Your work! (I can'tfigure out how to graph it and when i used substitution and elimination it came out with two different anwsers. I need help! and i need to be able to show my work!)

    asked by Darryl
  156. Chemistry

    how many grams of oxygen are in 213.5g Fe2O3?

    asked by Felipe
  157. chemistry

    which is the symbol for the following monatomic ion? 8 protons and 10 electrons

    asked by Maria
  158. Math

    I am looking for help integrating using u substitution over the interval of 0 to pi/2 the function cos(2x/3)

    asked by Hannah
  159. chemistry

    Calculate the total mass of gold needed to react with 4200g of chlorine to make 7112g of gold(iii) chloride?

    asked by naseeb
  160. Physics

    Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance between the two charges? So let's say I use Coulomb's law would the repulsion of 175 N be considered the equivalent of the

    asked by Pablo
  161. Science

    1. I got a list of solutions. We did a test in the lab to figure out what was there pH. How do you figure out which one is the most acidic and the most basic? 2.When might you need to know whether a solution is acidic or basic? 3. Dishwasher detergent,

    asked by Neha
  162. biology

    Most homeostatic mechanisms are controlled with a negative feedback loop. Explain why this mechanism may be more efficient at maintaining homeostasis as compared to positive feedback mechanisms. Provide examples of both to illustrate.

    asked by Anonymous
  163. English

    The questions says, he is always late unfortunately. Late is the word underlined. Is late an adjective ?

    asked by Sammie
  164. math

    two card are chosen at random from a standard deck of cards with replacement. What is the probabilit of getting two aces

    asked by Anonymous
  165. math

    a picture frame containing a photogragh is 11 inches wide and 14 inches high. a mat around the photograph is 1 1/2 inches wide on all sides. what are the dimensions of the photograph? do you want to add or subtract from each side?

    asked by jean
  166. Economics

    Suppose the demand curve for a monopolist is Qd = 500 – P, and the marginal revenue function is MR = 500 -2Q. The monopolist has a constant marginal and average total cost of $50 per unit. A. Find the monopolist’s profit- maximizing output and price.

    asked by Michelle
  167. English

    i have to write a character sketch essay on the protagonist OR antagonist for the book Royally Jacked & i picked Valerie Winslow && i need a thesis Statement for it ? And its due in a day ! and i need help Please Help Me . ~ Thank You .

    asked by Taylor
  168. health, safety, and nutrition for the young child

    a child who moved from throwing a ball using only an elbow movement to throwing a ball using her elbow, wrist, and shoulder is showing signs of _____ development. (a)intertask (b)spatial (c)joint-plate (d)intratask

    asked by erica
  169. Math

    Find the area of a rectangle if its length is 5x+10 and its width is 5x-5

    asked by Julie
  170. geometry

    the perimeter of a square lot is seven times the length of a side, decreased by 12. fine the length of a side.

    asked by renolo alfredo
  171. English

    So which way is correct? The teacher will speack about the homeless in Florida. Or The teacher will talk about the homeless in Florida.

    asked by M
  172. PHYSICS II

    When two identical ions are separated by a distance of 4.0×10^−10 , the electrostatic force each exerts on the other is 5.7×10^−9 . How many electrons are missing from each ion? what i did was used coulombs law to find the value of q1 and q2 , so

    asked by Cassie
  173. trig

    Ido not understand why the rt triangel was in ratio of 1:√3:2 in Sue's question where in triangle abc c isthert angle and sin a √3/2 - find csc b-please explain where the 1 comes from

    asked by dena
  174. physics

    what is the maximum acceleration equation?

    asked by cole
  175. algebra

    Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of nickels she has is 9 less than twice the number of pennies; the number of dimes she has is 19 less than three times the number of pennies. How many coins of each kind

    asked by Brittney
  176. physics

    a hare can run 100m in 5 seconds what is its speed

    asked by tom turner
  177. Statistics

    This is my first time taking statistics, please help me with the problem step by step. A sample of 20 pages was taken without replacement from the 1,591-page phone directory Ameritech Pages Plus Yellow Pages. On each page, the mean area devoted to display

    asked by Tee
  178. Math

    Which integer is 6 greater than -5. So what i have to do here?

    asked by Miley
  179. Social Studies

    how did helen thomas feel about watergate? if u could also tell me where u found the answer that would help, thanks

    asked by Jake
  180. computer science

    Write a program that prompts the user to input three numbers. The program should then output the numbers in non-descending order

    asked by swert
  181. Calculus

    solve the following: 2^-x=3^2x+2

    asked by Zukii
  182. RATIOS MATH

    x to 6, 20 to 24 find value of x that makes them equal

    asked by lolli
  183. world history

    Prehistory ended with the invention of what?

    asked by kyle
  184. Science

    How many electrons are present in the outer shell of each element?

    asked by Fred
  185. Science

    How do you calculate the total magnification of a microscope, using the eyepiece magnification and the objective magnification?

    asked by Sara
  186. social studies

    6. Stabilization policies can best be described as policies that: A. attempt to eliminate recession and/or inflation in the economy. B. use changes in government spending to promote an equitable income distribution. C. use changes in the money supply to

    asked by sierra
  187. Math

    abcd is a square, and point e lies along side ab so that ae is three times as long as eb. To the nearest degree, what is measure of angle ecb?

    asked by Sean
  188. Math

    Karen is 63 inches tall and casts a shadow that is 32 inches long. At the same time, a tree casts a shadow that is 81 inches long. How tall is the tree?

    asked by John
  189. English

    Can you check how I rephrase the opening to the first chapter of Orwell's 1984? Thank you . 1) This extract is taken from G. Orwell’s 1984 and gives an insight into life (I need a synonym) in London, the capital of Oceania, a totalitarian state where the

    asked by Franco
  190. Algebra

    Using the following six digits, 1, 2, 4, 6, 8, and 9, fill in the blanks below to make the maximum product that you can. Use each digit only once. How does an understanding of place value help determine the best solution to this problem?

    asked by Melissa
  191. Math

    What is the value of x? A isosceles triangle: bottom - x+3 one side - 2x+5 other side - 3x+2

    asked by Brittany
  192. Biology help :(

    Place the following process in the correct order. a) urine is stored in the bladder. b) blood enters the afferent arteriole. c) fluids pass from the glomerulus into Bowman's capsule. d) urine is excreted by the urethra. e) sodium ions, glucose and amino

    asked by Brianna
  193. biology

    Who discovered DNA was it James Watson and Francis Crick or Friedrich Miescher ? thankyou

    asked by kellie
  194. Health

    Should mentally handicapped people be allowed to have children?

    asked by Anonymous
  195. calculus

    Find the equation of the line l, given that f(x)=10^x and the point A is at x=logbase10(4).

    asked by Jamie
  196. English

    I still have a few more sentences on the same theme. I really hope you can look at them too. 1)In any case, the face of Big Brother symbolizes the Party in its public manifestation; he is a reassurance to most people (the warmth of his name suggests his

    asked by Franco
  197. math

    what is the solution sets of the following a) 2x^-7x-5 b)5y^-16y+3 c)10x^+5y-6 d)10x^-13x+4 e)12y^-11y-5 f)10c^-21c+9 g)3m^+5m-2

    asked by Mohamed shiko
  198. Math

    If find RX = 2y + 2x, TX = 3y - 1, and SU = 28, FIND THE VALUES OF X AND Y

    asked by Mike
  199. Chemistry Lab

    Infrared, ultraviolet, and visible radiation are all part of the electromagnetic spectrum. Arrange the three types of radiation in order of increasing energy. Note: Use only infrared, ultraviolet, or visible for your answers. Lowest: ___

    asked by Shawn Tabrizi
  200. math

    Using the formula for the area of a triangle, A = 1/2 bh, find the area of this triangle pictured. The base is 2x + 16 and the height is 4x. I just don't know how to work the problem.

    asked by Alyssa
  201. Chemistry

    When 0.855 g of this solid was dissolved in 7.50 g of napthalene, the solution had a freezing point of 78.0° C. The pure solvent freezes at 80.0° C; its molal freezing point constant is 6.8° C/m. What is the molecular formula of the compound?

    asked by Justyn
  202. Maths

    is 10*10exponent -3 a scientific notation?

    asked by Joel
  203. calculus

    rotate the axes and eliminate the xy term of 3(x^2)+2xy+3(y^2)-8

    asked by maddie
  204. english

    Since I'm doing a research paper now and i'm not sure if I accidentally plagiarize the contents when i try to paraphrase in my own words, so does anyone know any safe website that has a tool for me to check my essay

    asked by blaking
  205. math

    4545456+15616

    asked by bejklnfjklaefn
  206. physics

    Compare the gravitational force on a 35 kg mass at the surface of the Earth (with radius 6.4 × 10 6 m and mass 6 × 10 24 kg) with that on the surface of the Moon  with mass 1 81.3 ME and radius 0.27RE  . What is the force on the moon?

    asked by Anonymous
  207. English

    I forgot to include these other sentences. Thank you for your help. 1) He tries to remember what London was like when he was a child. Actually, he cannot remember anything about his childhood, except “a series of bright-lit tableaux, occurring against no

    asked by Franco
  208. The Canadian Spelling

    Hi. I wanna ask you one question. "Why is the spelling of the hockey team The Toronto Maple Leafs unusual?" If you can answer I gonna be happy.

    asked by pretty
  209. Economics

    Suppose the demand curve for a monopolist is Qd = 500 – P, and the marginal revenue function is MR = 500 -2Q. The monopolist has a constant marginal and average total cost of $50 per unit.

    asked by Michelle
  210. Math

    (numeratorx^-4y^2/Denominator x^-2y^-4)-3

    asked by Julie
  211. Math

    Solve. 3p-1=5(p-1)-2(7-2p)

    asked by Paige
  212. Math

    Megan bought a book for $12.00, received an allowance of $15.00, paid back a loan of $7.00, bought lunch for $8.50, earned $8.00 raking leaves, and found $2.00. She now has $22.25. How much did she start with? Please I need help. Thank you

    asked by pretty
  213. math

    how does algebra help you show pattern or black hole number?

    asked by cliford
  214. physics

    What force must be exerted to prevent a truck weighing 15 tons from rolling down an inclined plane which makes an angle of 3 degrees with the horizontal.

    asked by Elise
  215. College Algebra II

    When you look out over an unobstructed landscape or seascape, the distance to the visible horizon depends on your height above the ground.

    asked by Sherry
  216. Geography

    What country is St. Lo in?

    asked by Lorraine
  217. Math

    The circumference of a circle with radius r is πr2 Is this true?

    asked by ken
  218. Math/Trig

    Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth.

    asked by CJ
  219. Business

    Would it be better to pay off a $1000 loan at 4% over 15 years or at 10% over five years ?

    asked by Joe
  220. Math

    The area of a square field is represented by the trinomial x^2-10x+25. Write an expression that would represent the perimeter of the field.

    asked by Julie
  221. chemistry

    What is a typical speed for a N2 molecule in this room? a) 50 m/s b) 500m/s c) 1500 m/s

    asked by emoni
  222. MATH HELP

    A line with an undefined slope passes through the points (-2,1) and (p, q). Which of the following points could be (p, q)? A. (1,0) B. (0,1) C. (0,-2) D. (-2,0) Help Me, I do not know how to figure this out?????

    asked by Anonymous
  223. physical science

    the attraction or pull of a person"s body toward the earth by the earth is called weight.the reaction to this force is the:

    asked by kitsy
  224. Math

    What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

    asked by lou
  225. computer science

    What is an assembly language

    asked by shawn
  226. math

    Give the slope and y-intercept for the line represented by y=3x/2

    asked by m
  227. Algebra 2

    Let f(x)=x^2+1 and g(x)=2x^2 find G(f(x))

    asked by Mary
  228. calculus

    The first derivative of the function f is given by f'(x) = (cos^2x)/x - 1/5 How many critical values does f have on the open interval (0,10)?

    asked by anynymous
  229. Math/Trig

    Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.

    asked by CJ
  230. trig

    (x^3 y)/(y^(1/2) x^(-2) )

    asked by deena
  231. trig

    sorry -- here it is simplify this expression : (x^3 y)/(y^(1/2) x^(-2) ) when x is not = 0, and y is not equal to 0 thank you

    asked by deena
  232. Pre-Calculus

    For what values of x is it true that |sin(x)-x| < 0.01?

    asked by Sara
  233. Math

    How do you find the height of a triangle ?

    asked by CJ
  234. health care studies

    micro perspective vs marco perspective which has the greatest influencce on a person health?

    asked by carol
  235. alge2

    simplify: (2±√x)/(2-√x)

    asked by anony
  236. Math

    If a sphere has radius 5 m. what is the surface area of the sphere?

    asked by victor
  237. English

    If I say "Did Tom speak Italian" is this past tense?

    asked by Ging
  238. Math

    If a sphere has radius 5 m. what is the volume of the sphere?

    asked by pop
  239. Maths

    (3^-2e^4)^-1 [bracket three to the power of negative 2. 'e' to the power of 4, close bracket, to the power of negative 1]

    asked by Gilda
  240. Math

    If a cube has one edge of 2m, what is the surface area of this cube?

    asked by dave
  241. Math

    A cube is both a polyhedron and a prism. This isn't true right?

    asked by mark
  242. world history

    The Hull house is an example of ______?

    asked by tisha
  243. math

    A koala sleeps an average of 22 hours each day about how many hours does a koala sleeps in a year?

    asked by Justin
  244. Combinatorics

    In how many ways can 8 students be assigned to 2 groups if each group must have at least 3 students?

    asked by Anon
  245. grade nine space

    Compare the following objects in the our Solar System in terms of 1. Where they are located and 2. What they are composed of : Sun Terrestrial planets Jovian planets Asteroids Comets Meteroids

    asked by peyton
  246. math

    a bullet of mass m,with speed v,hits a fixed wooden block and penetrates a distance of l.find the average resistance of the wood.

    asked by ara
  247. math

    a bullet of mass m,with speed v,hits a fixed wooden block and penetrates a distance of l.find the average resistance of the wood.

    asked by ara
  248. Math

    (5x + 10)(5x - 5)

    asked by Julie
  249. Math

    When you look out over an unobstructed landscape or seascape, the distance to the visible horizon depends on your height above the ground. The equation d=3/2h is a good estimate of this, in which d=distance to horizon in miles and h=height of viewer about

    asked by Sherry
  250. math

    Please show me the steps on how to get the simplest form for 1 7/5ths

    asked by johan
  251. math

    A praire vole has an average of 9 babies per litter. if it has 17 litter in season about how many babies are produced?

    asked by Justin
  252. english

    use yellow flower in a sentence

    asked by joey
  253. geometry

    if the hypotenuse of a triangle equals 25 and the height is x, then what is the length of the base?

    asked by Anonymous
  254. Calculus

    solve the following: 2^-x=3^2x+2

    asked by Zukii
  255. Math

    The circumference of a circle with radius r is πr2 Is this true?

    asked by john
  256. Calculus

    solve the following: 2^-x=3^2x+2

    asked by Zukii
  257. ALGEBRA!!!!

    16p³+12p²+20p+15

    asked by LIZETH
  258. annuities

    7. Find the nominal interest rate that is equivalent to 18%/a, compounded quarterly, if interest is paid monthly.

    asked by Chelsea
  259. Computer Science 40

    Please help me with this homework assignment. I tried everything and it still didn't work. The question is: Use three variables volume, radius, and height to write a program that can be use to calculate the volume of a cylinder. Formula: volume = radius x

    asked by Mailo Her
  260. Math

    How do I find the limit as x approaches 4 from the right when f(x)= (4-x)/l4-xl ?

    asked by Rebecca
  261. math

    how do you find the perimeter of four and one half , three and one half , three and two thirds ,two and two thirds and eight feet and one feet

    asked by micah
  262. Math

    In a circle, the measure of an inscribed angle is one-half the measure of its intercepted arc. Is this true or false?

    asked by al
  263. Biology

    Your research team suspects that lactose intolerance is a recessive trait. Which of the following observations would contradict your theory? a) Two lactose intolerant parents always have children who are lactose intolerant b) Genetic analysis shows that

    asked by Bella
  264. Math

    What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

    asked by anthony
  265. math

    3 (g-3) = 6 find the value of g

    asked by Jenni
  266. chemistry

    If 8.00 kJ of heat are added to 200. g of water at 20.0 C, what is the final temperature of the water?

    asked by jane
  267. Algebra

    If y=7^(x+5)write the equation for the inverse of y. It must be a y=equation.

    asked by Jill
  268. math

    Solve for x to the nearest hundreth for an algebraic solution. 2^(x-2)=54

    asked by Anonymous
  269. Math

    If the 3 sides of a triangle have lengths 9m, 12m, and 15m, what is the area of this triangle?

    asked by jackie
  270. Spanish

    Hoe do you say "I turn on the fan when its hot." is this correct: Yo arrancar la ventiladora fue su caliente.

    asked by Needs Help
  271. Algebra II

    I am stuck on a rational division problem: x is squared minus 1 0ver 1 divided by x-1 over x + 5 = I hope you can help, Cathy It has been five, stupied, hours now!

    asked by cathy
  272. Social Studies

    how has the internet changed video voyerism? noone answered when i posted it before

    asked by Jenny
  273. medical

    how long will someone have to be in the hospital after they fainted?

    asked by alanaR.
  274. Psychology final

    Informational Interview Your final project for this course will be a 3- to 5-page paper that consists of the insights you have gained about yourself, your experience with this course, and the information you learned about your career choice during your

    asked by Christina
  275. math

    -3(4b-10) = .5(-24b=60) find the value of b

    asked by ashley
  276. Science

    What are black holes ?

    asked by Justina
  277. physics

    A passenger riding on a train moving over a bridge with a velocity of 55m/s, drops a pen out of the window. the pen lands in the river below 2.4 seconds later. A. find how high the window was above the water. B. how far forward did the pen move?

    asked by Anonymous
  278. Spanish

    Does The Prince and Princess live at la Zarzuela near Madrid?

    asked by Needs Help
  279. trig

    is there a lowest or least cosine of a triangle with sides of 4,5,and 6? such as: .78, .72...

    asked by ag
  280. biology

    what cgange occurred in the shape of the horse from hyracotherium to equus?

    asked by latisha
  281. physics

    A passenger riding on a train moving over a bridge with a velocity of 55m/s, drops a pen out of the window. the pen lands in the river below 2.4 seconds later. A. find how high the window was above the water. B. how far forward did the pen move?

    asked by Anonymous
  282. Math

    Solve integration using u substitution of (x+1)sqrt(2-x)dx

    asked by Hannah
  283. social studies

    when did the slave trade end ? what did many people think(and hope) would happen to slavery ?

    asked by Anonymous
  284. biology

    Jane is diabetic. How does this meal affect her condition and what interventions may be needed to return her body to homeostasis

    asked by Anonymous
  285. social studies-geography

    the st. lawrence seaway connects these two bodies of water

    asked by janet
  286. chemistry

    Mercury has a density of 13.6 g/mL. What is the mass of 4.72 L of mercury?

    asked by Maria
  287. geometry

    a square has a diagonal measurement of 8 radical 2 inches. calculate its perimeter.

    asked by taylor
  288. Principles of Macroeconomics

    What are the non-monetary benefits of growing tobacco, of working as a plumbers assistant, and of working as a carpenter during the spring and summer and storing travel trailers for a local campground and selling oysters during the fall and winter?

    asked by Melissa
  289. Social Studies 20-1

    Can someone explain to me what these sourses mean and how they relate to nationalism? (just so i have an idea of what i am going to write about) SOURCE 1 "the lines of red are blood, nobly and unselfish shed by men who loved the liberty of their fellowmen

    asked by kyle
  290. Math

    Jeremy is in Grade 8. He has a paper route and wants to save for his college education. He determines that he has $100 per month to put into an account at 6%/a compounded monthly. How much will he have at the end of five years for his college education? n

    asked by Alicia
  291. math

    where can i find information about fractions decimals and percents

    asked by jaansia carswell
  292. algebraII

    solve for x: 1)log(x-3)+log(x+4)-logx=log5

    asked by MIchelle
  293. Math

    can this be written using "i" ? (-1 + √(-11)) / (2) i know that √-1 becomes + or - i

    asked by Amy
  294. science

    Why doesn't the sand from california beaches' result in froth and bubbles when you pour vinegar on it?

    asked by tiff
  295. Calculus

    (3x-4)e^x2-6=0

    asked by Zukii
  296. Chemistry Lab

    The Rydberg equation (1=Rni 2–Rnf 2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and y-intercept(b)? A. mb B. –mb2 C. (mb)12 D. (–mb)12 E. (mb)12 F. None of these are correct. Thank you :)

    asked by Shawn Tabrizi
  297. Math

    Rewrite as a single log: 4lnx-2lny+1/3lnw

    asked by Anonymous
  298. physics

    A suspension bridge supported by a cable 100ft long has a sag of 10ft at its center. If the bridge has a weight of 20,000 lbs and its center of mass is the center of the bridge, what is the tension on the cable?

    asked by bird
  299. Math

    What is the circumference of a circle with a diameter of 10 m.

    asked by will
  300. Math

    I had to simplify the expression: -5exponent2(squared) I got the answer of 25 wrong. Why is that wrong?

    asked by Julie
  301. Math

    I need help with this problem. Jason's credit cards beginning unpaid balance for August is $2,000. During the August billing cycle he made a payment of $200 and used card to purchase $50 worth of groceries. Credit card charges 24% annual percentage rate

    asked by Princess
  302. Chemistry

    "The analyzer said that at 20degreesC the unknown gas was 82.8% carbon by weight and 17.2% hydrogen. The analyzer also diffused the gas through a special apparatus and measured the rate of its diffusion compared to how fast oxygen gas diffused under the

    asked by Anonymous
  303. English

    I need a plausible solution to genocide.

    asked by Jessica
  304. Math

    (abc)^0

    asked by Julie
  305. Math

    A commercial airplane has a takeoff speed of about 300 km/h. What si the takeoff speed in mi/h?

    asked by Lexi
  306. Algebra

    Solve: 3x-2y=10 2x+3y=-2 Graph: Substitution: Elimination: Show Your work! (I can'tfigure out how to graph it and when i used substitution and elimination it came out with two different anwsers. I got (13/3.5,19/10.5) for substitution, and ((0.2,-0.8) for

    asked by Darryl
  307. stats

    Suppose i am interested in the average price of books at a bookstore. i randomly pick 15 books.? i calculate the average of those, report my findings to the newspaper. can you identify the following: a. the population under consideration b. the parameter

    asked by laura
  308. physics

    if the greatest acceleration force which may be be applied to a vehicle is numerically equal to its weight, find a the least distance and b the least time, in which the vehicle travelling on a horizontal road can be brought to rest from an initial velocity

    asked by tennesha greene
  309. Math

    Yuki made cookies on Monday. Some friends came over and ate half the cookies on Tuesday. on Wednesday, Yuki ate three cookies, and on Thursday, she took two cookies to school. By Friday, Yuki had seven cookies left. How many did she bake on Monday? Thank

    asked by pretty
  310. math

    factor 6x^2-1

    asked by Ethan
  311. History

    What advantage did the United Nations (World War 2) appear to have over the League of Nations (World War 1) ?

    asked by Lorraine
  312. science

    how do you make a phytoplankton at home

    asked by tara