Questions Asked on
September 21, 2010

  1. science

    in a symbiotic relationship a) both organisms always benefit b) both organisms are harmed c) both organisms never benefit d) at least one organism always benefits e) neither organisms is affected d

    asked by pam
  2. physiscs

    a pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest , the period of the pendulum is T. In instant when the pendulum reaches its highest position the elevator starts the free fall. What is the period of the

    asked by Ray
  3. Physics

    A chain composed of four identical links is suspended by a rope and does not move. How many force vectors would be drawn on the free body diagram of each link and which direction would they point? My answer: ---------- FIRST LINK (top): Upward force from

    asked by Stanley
  4. Chemistry

    a)What mass of water is produced from the complete combustion of 2.30×10−3 g of methane? b)What mass of oxygen is needed for the complete combustion of 2.30×10−3 g of methane? This is the unbalanced equation given: CH4+O2->CO2+H2O

    asked by Cindy
  5. Chemistry

    a). What mass of carbon dioxide is produced from the complete combustion of 2.30×10−3g of methane? b)What mass of carbon dioxide is produced from the complete combustion of 2.30×10−3 g of methane? Can someone step me through this?

    asked by Holly J
  6. physics

    a cheetah can accelerate from rest to 24 m/s in 2.0 s . Assuming the acceleration is constant over the time interval, a)what is the magnitude of the acceleration of the cheetah? b) what is the distance traveled by the cheetah in these 2.0 s.? c) a runner

    asked by tatiana
  7. chem

    Which of the following elements would you expect to gain electrons in chemical changes? (Select all that apply.) gold chromium zirconium nitrogen iodine

    asked by Sara
  8. physics

    Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 2.5 km/s while moving it through a distance of only 1.7 cm. (a) What acceleration does

    asked by Anonymous
  9. Calculus

    Find expressions for the quadratic functions whose graphs are shown. One graph has the point (4,2) plotted in which the parabola passes through (U-shaped parabola- right side up) The vertex is at (3,0) and the parabola does not touch the y-axis for as much

    asked by Chelsea
  10. 6th grade social studies

    When and why did the cultures od Egypt an Nubia begin to mix? The cultures of Egypt and Nubia begin to mix as people and goods passed between Egypt and Nubia. The two cultures mix because Egypt conquered most of Nubia and ruled it for 100 years and during

    asked by Reed
  11. physics

    A horizontal force of 100 N is required to push a piece of furniture across a floor at a constant velocity. what is the net force acting on the furniture? How much is the friction force that acts on the sliding furniture? How much friction acts on the

    asked by m
  12. physics

    A small map shows New York to be 486 miles in a direction 8° north of east from Columbus. The same map shows that Buffalo is 302 miles in a direction 56° west of north from New York. Assume a flat Earth, and use the given information to find the

    asked by Anonymous
  13. physics

    A man whose mass is 75kg walks up a flight of 12 steps each 20 cm high in 5 seconds . Find the power he develops in watts

    asked by Felie
  14. Physics

    A projectile is launched from ground level to the top of a cliff which is 195 m away and 155 m high. If the projectile lands on top of the cliff 9.2 s after it is fired, find the initial velocity of the projectile (magnitude and direction). Neglect air

    asked by Jamie
  15. chemistry

    calculate the amount of heat released when 50g of water at 100degrees hits the skin, condenses, cools the body to 37 degrees

    asked by christian
  16. Chemistry

    Please help the question that I got is: Calculate how much 95% ethyl alcohol will be required to dissolve 075g sulfanilamide at 78 degree Celsius. Knowing that solubility of sulfanilamide is 210 mg/ml at 78 degree Celsius, 14mg/ml at 0 Degree Celsius.

    asked by Andy
  17. Math

    A real estate agent to sell a large apartment complex according to the following commission schedule: $45,000 plus 25% of the selling price in excess of $900,000. Assuming that the complex will sell at some price between $900,000 and $1,100,000, inclusive,

    asked by Amy~
  18. physics

    If the back of the truck is 1.0 above the ground and the ramp is inclined at 26, how much time do the workers have to get to the piano before it reaches the bottom of the ramp?

    asked by DP
  19. Science

    Calculate how much 95% ethyl alcohol will be required to dissolve 075g sulfanilamide at 78 degree Celsius. Knowing that solubility of sulfanilamide is 210 mg/ml at 78 degree Celsius, 14mg/ml at 0 Degree Celsius.

    asked by Tammy
  20. Chemistry

    a)How many grams of NH3 can be produced from 2.84mol of N2. b)How many grams of H2 are needed to produce 14.86g of NH3? balanced equation: 3H2+N2->2HN3

    asked by Amy
  21. physics

    You throw a ball upward from a window at a speed of 2.9 m/s. How fast will it be moving when it hits the sidewalk 2.2 m below?

    asked by Anonymous
  22. physics

    A suspension bridge is 66.0 m above the level base of a gorge. A stone is thrown or dropped from the bridge. At the location of the bridge, g has been measured to be 9.83 m/s2. In each of the following, assume that there is no air resistance. (a) If you

    asked by Kacy
  23. physics

    An airplane is flying horizontally with a constant velocity of 170 m/s at an altitude of 4500 m when it drops a package. (a) How long does it take for the package to reach the ground? ___s (b) What is the distance between the airplane and the package when

    asked by jayson
  24. college physics

    To stretch a spring 7.00 cm from its unstretched length, 16.0 J of work must be done. What is the force constant of this spring? What magnitude force is needed to stretch the spring 7.00 cm from its unstretched length? How much work must be done to

    asked by jon
  25. Physics

    A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)?

    asked by Tom
  26. physics

    A diver running 1.8m/s dives out horizontally from the edge of a vertical cliff and 3.0s later reaches the water below. How high was the cliff, and how far from its base did the diver hit the water?

    asked by Mark
  27. Chemistry

    ammonia gas reacts with copper (ii) oxide at high temperatures to produce elemental nitrogen, copper metal, and water vapor. Assume that 36.2g ammonia reacts with 180.8 g copper ii oxide. (balanced equation: 2 NH4 (ammonium) (g) + 4 CuO (copper ii oxide)

    asked by Jack
  28. Physics Please Answer

    1. to make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. a steel rivet 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter at 20 degree

    asked by JT
  29. chemistry

    Commercially available concentrated sulfuric acid is 18.0 M H2SO4. Calculate the volume (in mL) of concentrated sulfuric acid required to prepare 1.60 L of 0.320 M H2SO4 solution.

    asked by Jen
  30. college physics

    Two blocks each of mass m = 4.10 kg are fastened to the top of an elevator as in the figure below. (a) If the elevator accelerates upward at 1.6 m/s2, find the tensions T1 and T2 in the upper and lower strings. (b) If the strings can withstand a maximum

    asked by miles
  31. math

    a custom printing store is planning on adding painters caps to its product line. For the first year the fixed costs for setting up production are $15,000 the variable costs for producing a dozen caps are $8 the revenue on each dozen caps will be $20 find

    asked by Anonymous
  32. Algebra 1

    could you tell me where I can get the "why do girls like guys who wear shirts with eight buttons?" worksheet to print free online?

    asked by Elizabeth
  33. PHYSICS

    1. to make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. a steel rivet 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter at 20 degree

    asked by JT
  34. physics

    A delivery truck travels 20 blocks south, 24 blocks west and 25 blocks north. What is its final displacement from the origin? Assume the blocks are equal length. Need magnitude of blocks, and direction(counterclockwise from east is positive)

    asked by jake
  35. Chemistry

    Anhydrous CuSO4 can be used to dry liquids in which it is insoluble. The CuSO4 is converted to CuSO4.5H2O, which can be filtered off from the liquid. What is the minimum mass of anhydrous CuSO4 needed to remove 12.4g H2O from a tankful of gasoline?

    asked by Kaylee
  36. physics

    A particles has a mass of 0.5 kg and a velocity of 734 m/s along the x axis when a force of 21 N along the y axis acts on the particle at right angles to the velocity. The acceleration of the particle is ____ m/s2

    asked by Anonymous
  37. chemistry

    A 0.4272-g sample of a potassium hydroxide – lithium hydroxide mixture requires 26.94mL of 0.3385M for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?

    asked by henry
  38. physics

    You throw a ball downward from a window at a speed of 1.9 m/s. How fast will it be moving when it hits the sidewalk 2.2 m below?

    asked by Anonymous
  39. college

    Assume that the student has a cup with 13 writing implements: 7 pencils, 4 ball point pens, and 2 felt-tip pens. In how many ways can the student select 9 writing implements if no more than one ball point pen is selected?

    asked by finite
  40. Physics

    A horse draws a sled horizontally across a snow-covered field. The coefficient of friction between the sled and the snow is 0.195, and the mass of the sled, including the load, is 209.8 kg. If the horse moves the sled at a constant speed of 1.730 m/s, what

    asked by Gina
  41. statistics

    Job Sat. INTR. EXTR. Benefits 5.2 5.5 6.8 1.4 5.1 5.5 5.5 5.4 5.8 5.2 4.6 6.2 5.5 5.3 5.7 2.3 3.2 4.7 5.6 4.5 5.2 5.5 5.5 5.4 5.1 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5 5.9 5.4 5.6 5.4 3.7 6.2 5.5 6.2 5.5 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5

    asked by chris
  42. physics

    An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed? If this speed were increased by just 5.0%, how much longer would the jump be?

    asked by cindy
  43. physics

    One of the fastest recorded pitches in major-league baseball, thrown by Billy Wagner in 2003, was clocked at 101.0 mi/h. If a pitch were thrown horizontally with this velocity, how far would the ball fall vertically by the time it reached home plate, 60.5

    asked by jay
  44. Math

    If light travels 10,000 km in 3.3 x 10-2 sec, how long will it take light to travel one meter.

    asked by Samantha
  45. college physics

    After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?

    asked by halley
  46. Chemistry

    What mass of protons would be required to just neutralize the charge of 1.5 g of electrons?

    asked by Evy
  47. Public Finance

    Suppose the marginal social cost of television sets is $100. This is constant and equal to the average cost of television sets. The annual demand for television sets is given by the following equation: Q = 200,000 – 500P2. If television sets are sold in

    asked by Barbara
  48. math

    translate each of the following into a verbal phrase. 1.4+3x 2.3x-4 3.2(x+3) 4.5+1/3x 5.2a+3b 6.6x-5 7.1/2x-4 8.x-3/7 9.5x-9y 10.(5+x)+2 11.15 . x/5 12.3+x/3+8

    asked by Niño Luther
  49. Science

    A bus makes a 10 mile journey throuh town. Its top speed is 30mph and its mean speed its 10 mph. Explain why these speeds are different?

    asked by Remy
  50. physics

    An elevator without a ceiling is ascending with a constant speed of 9.7 m/s. A boy on the elevator shoots a ball directly upward, from a height of 2.0 m above the elevator floor, just as the elevator floor is 25 m above the ground. The initial speed of the

    asked by kay
  51. physics

    A certain car is capable of accelerating at a rate of +0.60 m/s2. How long does it take for this car to go from a speed of 20 mi/h to a speed of 65 mi/h?

    asked by Bill
  52. Principles of Accounting I

    It is standard procedures, or GAAP, to make an adjusting entry to remove the current year's principle from the long-term liabilities. You are the bookkeeper for biker's business. Biker's business has a bank loan that requires a current ratio of 1.5 times.

    asked by Lizzie Nelson
  53. Physics

    In the figure, particle A moves along the line y = 26 m with a constant velocity of magnitude 2.6 m/s and parallel to the x axis. At the instant particle A passes the y axis, particle B leaves the origin with zero initial speed and constant acceleration of

    asked by Anonymous
  54. 6th grade social studies

    Okay, here's another. Describe the series of events that led to the end of Egypt's power in the Nile River Valley. My answer--The series of events started with Egypt having trouble with keeping conquered people under control,then they were conquered by the

    asked by Reed
  55. physics

    An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed?

    asked by sara
  56. physics

    You drop a stone into a deep well and hear it hit the bottom 1.90 s later. This is the time it takes for the stone to fall to the bottom of the well, plus the time it takes for the sound of the stone hitting the bottom to reach you. Sound travels about 343

    asked by faith
  57. physics

    A student bikes to school by traveling first d_N = 1.10 \rm {miles} north, then d_W = 0.500 \rm {miles} west, and finally d_S = 0.200 \rm {miles} south. If a bird were to start out from the origin (where the student starts) and fly directly (in a straight

    asked by lenny
  58. physics

    What average force is required to stop an 1300 -kg car in 9.0 s if the car is traveling at 90 km/h?

    asked by cindy
  59. physics

    Two long, straight wires are separated by 0.12 m. The wires carry currents of 8.0 A in opposite directions, as the drawing indicates. (a) Find the magnitude of the net magnetic field at the point A. ___T (b) Find the magnitude of the net magnetic field at

    asked by Anonymous
  60. Math

    a grocery clerk nstacks three rows of can of fruit for a display, each of the top two rows has 2 fewer cans than the row beneath it, there are 30 cans altogether, how many cans are in each row?

    asked by Lizzy
  61. chemistry

    3) A graduated cylinder has 25.0mL of water in it before an aluminum cube with the mass of 10.0g is added to it. What is the new level of water in the cylinder?

    asked by Kary
  62. Calculus

    According to Kleiber's Law, the metabolic rate P (in kilocalories per day) and body mass m (in kilograms) of an animal are related by a three-quarter power law given below. Estimate the increase in metabolic rate when body mass increases from 65 to 66 kg.

    asked by Rey
  63. Math

    The entire surface of a solid cube with a length of 6 inches is painted. The cube is then cut into cubes each with edge of length 1 inch. How many smaller cubes are there? How many of the smaller cubes have paint on exactly 1 face?

    asked by Jackie
  64. Grammar

    Write each possessive noun or contraction with an apostrophe. 1. Woodrow Wilson was Americas twenty-eighth president. America's 2. As a student at Princeton, joined the schools debating society. schools' 3. Before becoming president, he served as Princeton

    asked by TiffanyJ
  65. Physics

    Two baseballs are thrown off the top of a building that is 7.24 m high. Both are thrown with initial speed of 63.3 mph. Ball 1 is thrown horizontally, and ball 2 is thrown straight down. What is the difference in the speeds of the two balls when they touch

    asked by Gina
  66. Physics

    A particle of mass m is subjected to a force acting in the x-direction. Fx = (3.2 + 0.55x) N. Find the work done by the force as the particle moves from x = 0 to x = 4.5 m. 1

    asked by Gina
  67. geography

    What does Pig ears stand for?

    asked by Dylan
  68. physics

    A ball is thrown horizontally from the roof of a building 33.0 m tall and lands 20.5 m from the base. What was the ball's initial speed?

    asked by Jamie
  69. physics

    Rocket-powered sleds are used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 444 m/s in 1.80 s and can be brought to a stop again in 2.15 s. (a) Calculate the acceleration of the sled when starting, and

    asked by Anonymous
  70. Science

    A bus makes a 10 mile journey throuh town. Its top speed is 30mph and its mean speed its mph. Explain why these speeds are different?

    asked by Lucy
  71. science

    a cookie a certain mass. explain why the mass would not change if you break the cookie in half.

    asked by bethany
  72. Physics

    A chain composed of four identical links is suspended by a rope and does not move. What are the forces on each chain? (include where they come from)

    asked by Tyrone
  73. science

    What mass of protons would be required to just neutralize the charge of 1.7 g of electrons? I thought it was simple because 1 proton maxes out 1 electron but my teacher started talking abou this complicated way of doing it and i didn't get it :( can

    asked by Lily
  74. Caclulus, bobpursley HELP!

    Sorry for bothering you on this one question but I just replied to my original problem if you could help me with that.

    asked by Leanna
  75. science

    Check my answers? thanks ppl 1. which of the folowing is NOT considered an organism? A an oak leaf B a spider C an elephant D a bacteria cell is it D. 2.to which domain of life do humans belong? A. animals B. eukarya C. archae D. none of the above IS IT D

    asked by Sara!
  76. Calculus

    If the function f is defined by f(x)=x^2-2x, find limit h->0 (f(3+h)-(f(3-h))/2h

    asked by Leanna
  77. math

    A cyclist leaves his training base for a morning workout, riding at the rate of 18 mph. One hour later, his support staff leaves the base in a car going 52 mph in the same direction. How long will it take the support staff to catch up with the cyclist once

    asked by aaron kennedy
  78. science

    An organism's ability to maintain homeostasis is important to it's survival. Explain why an organism that lives on land has more complex mechanisms to maintain a stable internal environment than organims that live in water.

    asked by Jaci
  79. physics

    A charge of 6.00mC is placed at each corner of a square 0.100 m on a side. Determine the magnitude and direction of the force on each charge.

    asked by john
  80. physics

    Consider again the problem of a car traveling along a banked turn. Sometimes roads have a "reversed" banking angle. That is, the road is tilted "away" from the center of curvature of the road. If the coefficient of static friction between the tires and the

    asked by tom
  81. physics

    A ball is thrown horizontally from the roof of a building 60 m tall and lands 45 m from the base. What was the ball's initial speed? _______m/s

    asked by Andy
  82. physics

    The pilot of an airplane traveling 180 km/h wants to drop supplies to flood victims isolated on a patch of land 125 m below. The supplies should be dropped how many seconds before the plane is directly overhead? ______s

    asked by Andy
  83. physics

    A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 1.80 s after she enters the water, what average force did the water exert on her?

    asked by mark
  84. college

    Pretend the program in Senegal had been reducing infant mortality at a rate of 11 % per year. How long would it take for infant mortality to be reduced by 39 %?

    asked by Marissa
  85. Physics

    Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars increase their speed by 4.54 m/s, they then have the same kinetic energy. Calculate the original speeds of the two cars. first car

    asked by Gina
  86. Physics

    A spring with a spring constant of 223.9 N/m is compressed by 0.220 m. Then a steel ball bearing of mass 0.0372 kg is put against the end of the spring, and the spring is released. What is the speed of the ball bearing right after it loses contact with the

    asked by Gina
  87. physics

    The pilot of an airplane traveling 240 km/h wants to drop supplies to flood victims isolated on a patch of land 160 m below. The supplies should be dropped how many seconds before the plane is directly overhead?

    asked by Sarah
  88. To Brittany and Ryan

    Because of your unacceptable remarks about another student's homework assignment, you have been banned on a temporary basis. We'll see in a couple of days if you can demonstrate civility online.

    asked by Writeacher
  89. physics 101

    What minimum speed does a 150g puck need to make it to the top of a 4.5m -long, 21degree frictionless ramp?

    asked by Robert
  90. physics

    A motorboat whose speed in still water is 3.00 m/s must aim upstream at an angle of 27.0^\circ (with respect to a line perpendicular to the shore) in order to travel directly across the stream. What is the speed of the current?

    asked by Mark
  91. Physics

    A chain composed of four identical links is suspended by a rope and does not move. What are the forces on each chain? (include where they come from)

    asked by Bill
  92. Chemistry

    1) A jar is filled with mercury and has a volume of 500.mL. What is the mass of mercury in the jar? Show your work for credit.

    asked by Kary
  93. physics

    a cannon ball is shot from a 100 m high cliff with an inital velocity of 24m/s and at an angle of 32 degrees. what is the overall final velocity of the cannonball?

    asked by Connor
  94. Physical Science

    Need help please. the once with the ( ) is my answer but i am not sure if it right. Thanks for your help. 15. If the distance from a converging lens to the object is less than the focal length of the lens, the image will be A. real, inverted, and larger

    asked by molly
  95. chemistry

    How many ML of H2SO4 (20m) are needed to make 500ml of 5M solution?

    asked by ad
  96. physics

    HELP PLEASE!!! A satellite moves in a circular orbit around Earth at a speed of 5085 m/s. (a) Determine the satellite's altitude above the surface of Earth. (b) Determine the period of the satellite's orbit.

    asked by bill
  97. physics

    A 1.20 block is attached to a spring with spring constant 14.0 . While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 . What is The block's speed at the point where = 0.350 A?

    asked by Anonymous
  98. Chemistry

    Suppose that the KMnO4 (aq) were standardized by reaction with As2O3. As2O3 + MnO4- + H+ +H2O yields H3AsO4 + Mn2+ (not balanced). If a 0.1322-g sample that is 99.16 % As2O3 by mass had been used in the titration, how many milliliters of the 0.02140 M

    asked by Kyle
  99. college physics

    A football punter accelerates a football from rest to a speed of 7 m/s during the time in which his toe is in contact with the ball (about 0.26 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?

    asked by morgan
  100. math

    x=((30)/(5.15+1.84i))+(5.15+1.84i) i= square root of (-1) final answer of x=10.3 please show me how you drive this equation to get the 10.3. thank you so much.

    asked by layth
  101. Chem- bobpursley

    What mass of protons would be required to just neutralize the charge of 1.5 g of electrons? my teacher said .0015kg times 1e-/.00091e-27kg times 1pt/1e- times 1.67262e-27 over 1 p chem - bobpursley, Tuesday, September 21, 2010 at 6:48pm That is what I

    asked by Sara
  102. AED 201

    Determine which factors may explain that most of the higher per-pupil expenditures are found in the Northeastern and upper-Midwest states and the lower per-pupil expenditures are found in the South and West. In your opinion, what must happen to create a

    asked by Jasmine
  103. 10th grade

    how would you use the word civility in a sentence

    asked by kedija
  104. Chemistry h/w

    Hi, this is my first lab in 2nd semester of chemistry, and im not sure about my answers in the assignment can someone give it a quick look to check them? this is my phase diagram: tinypic. com/view.php?pic=1605yev&s=7 p.s. ignore the lone red dot its

    asked by Jessie
  105. english

    How is "The Handsomest Drowned Man in the World" an example of the author using social realism?

    asked by Jess
  106. Calc

    The manager of a weekend flea market knows from past experience that if he charges x dollars for a rental space at the market, then the number y of spaces he can rent is given by the equation y= 200-4x. Is this correct? Slope represents the relationship

    asked by Chelsea
  107. Math

    Find the area of the surface generated by revolving the curve y = (x + 3)^1/2, 2 ≤ x ≤ 4 about the x-axis.

    asked by Alex
  108. Language arts

    What are some facts about edgar allen p's story Never bet the Devil your head?

    asked by jamica
  109. Physics

    A chain composed of four identical links is suspended by a rope and does not move. How many force vectors would be drawn on the free body diagram of each link and which direction would they point?

    asked by Ignatius
  110. math

    Kelly subtracted 2.3 from 20 and got 17.7. Explain why this answer is resonable.

    asked by Karen
  111. Geometry

    The perimeter of a regular pentagon is 31 cm. Find the length of each side.

    asked by Bob
  112. Math: Inequalities

    How would I solve this inequality and graph? (x+2)((x^(2)-x+1)) > 0 I got x > -2 and x^(2)-x+1 > 0 How would I graph x^(2)-x+1 > 0 because I can't factor it.

    asked by Amy~
  113. maths

    For the reaction given below, how many grams of Na2CS3 are produced in the reaction of 65.0 mL of liquid CS2 (d = 1.26 g/mL) and 1.56 mol NaOH?

    asked by srujan
  114. Algebra

    Determine if the following two planes 2x+3y-z=4 and 3x-4y-6z=1 are parallel, orthogonal or coincidental

    asked by Matthew
  115. math/physics

    A motorboat whose speed in still water is 3.00 m/s must aim upstream at an angle of 27.0 degrees (with respect to a line perpendicular to the shore) in order to travel directly across the stream. What is the speed of the current?

    asked by cindy
  116. college physics

    A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?

    asked by roxy
  117. English

    Can you please tell me if the following sentences are possible? I really don't know how to say it in English. Thank you. 1) I do the shopping at the market every Saturday. (Should I consider it a mistake if the sentence started with "every Saturday"?) 2)

    asked by Franco
  118. physics

    A 1.20 block is attached to a spring with spring constant 14.0 . While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 . What is the amplitude of the subsequent oscillations?

    asked by Mark
  119. college physics

    A 78-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.74 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.8 s,

    asked by justin
  120. physics

    A 1.20 block is attached to a spring with spring constant 14.0 . While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 . What is The block's speed at the point where = 0.350 A?

    asked by Anonymous
  121. algebra

    m+3n=7;n=-2,0,1

    asked by Anonymous
  122. biology - Genetic probability

    Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced

    asked by Axel
  123. math

    "Mahpee was selling magazine subscriptions. He earned $5 plus $0.50 for each subscription he sold. If Mahpee earned $25, use the equation 25=5 + 0.50n to find the number of subscriptions n he sold." How do I figure this out??

    asked by Rinoa
  124. Chemistry

    For the Following sets of compounds determine the best solvent, by looking at structure, also by looking at solubility vs. temp. Which is the best solvent for crystalization, in which the compound is too soluble, and in which solvent the compound is not

    asked by Tammy
  125. Calculus

    lim x->1 (x^47-1)/(x^9-1) With what method do I factor them with? Pascal triangle?

    asked by sh
  126. calculus

    The slopes of the tangent lines to the graph of the function f(x) increase as x increases. At what rate do the slopes of the tangent lines increase? f(x) = x2 – 1 Thanks for the help.. really need it.

    asked by john
  127. Physics

    A small blimp is used for advertising purposes at a football game. It has a mass of 93.0 kg and is attached by a towrope to a truck on the ground. The towrope makes an angle of 53.3° downward from the horizontal, and the blimp hovers at a constant height

    asked by Gina
  128. Chemistry

    "How many moles of oxygen are required to react completely with 5 mol C(8)H(18)?" 2C(8)H(18) + 25O(2) => 16CO(2) + 18 H(2)O In the question, how do I know if "oxygen" means the molecule O(2) or the element O?

    asked by Gray
  129. math

    4 [(4x^2 + 4x)]^2 + 4(4x^2 + 4x) I got up to: 16 ( 4x^4 + 8x^3 + 5x^2 + x) Is this right and also the domain is X is all real numbers? (-infinity, infinity)?

    asked by Aiten
  130. mATH

    find an equation of the line containing the giving pair of points (-2,-1),(-7-8) the equation of the line in slope =intercept form is y=

    asked by Anonymous
  131. physics

    Vector A has a magnitude of 23 units and points in the positive y-direction. When vector B is added to A, the resultant vector A+B points in the negative y-direction with a magnitude of 15 units. Find the magnitude of B?

    asked by jc
  132. Second order half life

    At 100 degrees C , a certain substance undergoes second-order decomposition with a half-life of 26 minutes. If the initial concentration of the substance is 3.9×10−2M , what is the value of the rate constant at 100degrees C? So I put in (1560seconds)

    asked by Sar
  133. PHYSICS

    An arrow is shot into the air at an angle of 59.6° above the horizontal with a speed of 21.5 m/s. (a) What are the x- and y-components of the velocity of the arrow 3.1 s after it leaves the bowstring? vx = m/s vy = m/s (b) What are the x- and y-components

    asked by Kacy
  134. PHYSICS

    An airplane has a mass of 34,500 kg and takes off under the influence of a constant net force of 44,500 N. What is the net force that acts on the plane's 79 kg pilot?

    asked by veronica
  135. Chemistry

    Hello. My teacher gave us a worksheet today she tried to explain it but I still don't understand it can someone help me please? 1) A jar is filled with mercury and has a volume of 500.mL. What is the mass of mercury in the jar? Show your work for credit.

    asked by Treasan
  136. math

    phil took 1/5 of a piece of cheese and rena took 4/9 of the remaining amount?

    asked by ishan
  137. Spanish

    Indicate the relationships between the family members listed below Modelos: yo / mi tía Yo soy el (la) sobrino(a) de mi tía. mis abuelos / mi padre Mis abuelos son los padres de mi padre 1.mi madre / mi hijo(a) 2.mis primos / mi mamá

    asked by christopher
  138. Math

    Which point on the circle x^2+y^2-12x-4y=50 is closest to the origin? Which point is farthest from the origin? Explain.

    asked by Danielle
  139. accounting

    what kind of source documents do we collect for accounting information systems?

    asked by Cindy
  140. Management Accounting

    Monash Company is currently manufacturing part Z911, producing 40,000 units annually. The part is used in the production of several products made by Monash. The cost per unit for Z911 is as follows: Direct Materials $9.00 Direct Labour 3.00 Variable

    asked by Ken
  141. Math

    Chad's property tax is 646.07 and is due April 20. He does not pay until Aug 29. 9.8 % Simple interest on unpaid tax. Find the penalty. can you please explain how we do this. thank you.

    asked by thommini
  142. chem

    A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? my teacher said 6pt x conversion to make kg and then add that to 6nx conversion to make kilograms. then that times conversion for

    asked by Sara
  143. physics

    A freight train has a mass of 1.7 multiplied by 107 kg. If the locomotive can exert a constant pull of 7.4 multiplied by 105 N, how long does it take to increase the speed of the train from rest to 68 km/h?

    asked by kyle
  144. physics

    plane traveling 200 km/hr with supplies for people 110 meters below. how many second before do they have to drop the supplies

    asked by tom
  145. 8th grade

    HOW CAN SOCIAL DEVELOPMENT IMPROVE THE ECONOMIC DEVELOPMENT OF A COUNTRY?

    asked by SANAM
  146. science

    I have a container which hold 30ml of fresh water that I need to heat to boiling using electricity run through an assumed efficient resistor. Assuming an ambient temperature of 23 degrees celsius how much watt energy do I need to put into 30 ml to bring

    asked by Francis
  147. physics

    A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?

    asked by Anonymous
  148. 6th grade math

    Why can you simplify 5(5+30) using the distributive property?why can't u simplify 5(50)+3 using the distributive property?

    asked by jaiden
  149. calculus

    use the following tables for f(x)and g(x), and just fill in the tables shown below: Use the following two tables: x 0 1 2 3 4 5 y=g(x) 9 2 15 1 11 14 And fill in the following table: x 7 10 11 y=g(x-6) a b c A= B= C=

    asked by anonymous
  150. math

    factor: 1. 6x^2y+4xy^3+10x^4y^4 2. 27m^3-8 3. 6n^8-11n^4-10 4. nx^2+x^2-9n-9

    asked by Amy
  151. American Government

    I have to do a 5 minute presentation on George Washington and I have to focus on his contributions towards the Constitution. All the sites I go to have pretty much the same information. Does anyone have sites that could help me?

    asked by Leanna
  152. biology

    When considering the incresing complexity of atoms, molecules, cells, and tissues, you may notice that each step characteristics that were absent in the previous level. These characteristics, called emergent properties, demonstrate that the whole organism

    asked by cynthia
  153. Calculus, bobpursley!

    This has to do with my last Calculus problem. I need help on it..The part I replied to after you answered the question.

    asked by Leanna
  154. Math

    The Bee's bus passes Jamie's house every 20 minutes, and the Wasp bus passes every half an hour. Both buses pass thehouse together at 1:10 P.M. When is the next time the buses pass together?HELP!

    asked by Etina
  155. physics

    An athlete executing a long jump leaves the ground at a 20° angle and travels 7.80 m. (a) What was the takeoff speed? 1._____ m/s (b) If this speed were increased by just 5.0%, how much longer would the jump be? 2.______ m

    asked by jake
  156. algebra 1

    the number of students attending the Fall play was 150 more than the number of adults attending. Student tickets cost $3, and adult tickets cost $5. A total of $4730 was collected. How many students attend the play?

    asked by rae
  157. Science

    What experiment did Matthias Schleiden do? What prior information did he use to help him with his research/discovery? What tools did he need to complete his experiment?

    asked by Jay
  158. Math

    are these right? im suppose to use like terms. 5z + 2(x + 3) - z dont solve it just simplify it. please give me a step to step process?

    asked by BrXce
  159. college physics

    A freight train has a mass of 1.7 multiplied by 107 kg. If the locomotive can exert a constant pull of 7.4 multiplied by 105 N, how long does it take to increase the speed of the train from rest to 68 km/h?

    asked by rachel
  160. trig

    HOW DO YOU SOLVE THIS PROBLEM, sin theta>0,cos theta>0

    asked by THOMAS
  161. Computer Science

    Is anyone familiar with JAVA?

    asked by Fayetta
  162. English

    Can you tell me which of the following three questions is best formulated? 1)Who mentioned Kurtz to Marlow for the first time? OR 2) Who was the first to mention Kurtz to Marlow? 3) Who first mentioned Kurtz to Marlow? I don't think "entertainer" is the

    asked by Franco
  163. chemistry

    what is a atom??? i get confused

    asked by anonymous
  164. English

    For the Richard Cory poem: 1) What is the denotation of "crown" in this use? "sole to crown" -- Would it be that they thought him to be a king?

    asked by Amy~
  165. calculus

    The height (in feet) of a skydiver at time t (in seconds) after opening his parachute is given by h(t) = 4000 – 19t. Find the skydiver's velocity after the parachute opens. The answer should be in feet per seconds. I would appreciate if somebody

    asked by Mark
  166. calculus

    The slopes of the tangent lines to the graph of the function f(x) increase as x increases. At what rate do the slopes of the tangent lines increase? f(x) = x2 – 6 PLZZ help

    asked by Amanda
  167. 11th grade

    When Maggie applies the brakes of her car,the car slows uniformly from 15.4 m/s to 0m/s in 2.41 s.How far ahead of a stop sign must she apply her brakes in order to stop at the sign?Answer in units of m.

    asked by Taylor
  168. port maria prep

    un scramble this word achtres

    asked by dominique
  169. geometry

    As the marketing designer for Burger King, you are given a 4 in by 6 in logo and have been told to create an advertisement that is six times larger. What is the area of your advertisement (in feet)? [12 inches = 1 ft] A. 6 ft2 B. 36 ft2 C. 72 ft2 D. 3 ft2

    asked by ashley
  170. Physics

    An ideal spring has the spring constant k = 464 N/m. Calculate the distance this spring must be stretched from its equilibrium position for 26 J of work to be done. 1

    asked by Gina
  171. math

    y/12 - 2/3 = 1/4

    asked by Joe Joe
  172. algebra

    what is the answer to this riddle? "what is the title of this picture?

    asked by Yuumei
  173. algebra 1

    i don't know how to solve the following: 3(x+2y)+$(3x+y)

    asked by bianca
  174. chemistry h/w

    Hi, this is my first lab in 2nd semester of chemistry, and im not sure about my answers in the assignment can someone give it a quick look to check them? this is my phase diagram: tinypic. com/view.php?pic=1605yev&s=7 p.s. ignore the lone red dot its

    asked by Jessie
  175. Spanish

    I need help placing accent marks where they belong in this short story. !Hola, Andres! ?Como estes? Fantastico, Carmen, ?y tu? Horrible. ?Por que? El profesor Gomez me indico ayer que yo tendre que sacar por lo menos una B en el examen manana para salir

    asked by Jennifer
  176. Calculus

    An airplane is flying at a speed of 350 mi/h at an altitude of one mile and passes directly over a radar station at time t=0. a) Express the horizontal distance d (in miles) that the plane has flown as a function of t. b) Express the distance s between the

    asked by Chelsea
  177. Physics

    Can someone help me to understand how to work out this problem? The pilot of an airplane traveling 240 km/h wants to drop supplies to flood victims isolated on a patch of land 160 m below. The supplies should be dropped how many seconds before the plane is

    asked by lisa
  178. world history

    Did Islam become more less influential in West Africa from the 700s to the 1400s?

    asked by Autumn
  179. Physics

    A brick is thrown upward from the top of a building at an angle of 30° to the horizontal and with an initial speed of 11 m/s. If the brick is in flight for 3.2 s, how tall is the building? ___m

    asked by jc
  180. physics

    An airplane flies 200 km due west from city A to city B and then 305 km in the direction of 30.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? ___km (b) Relative to city A, in what direction is city C?

    asked by jc
  181. physics

    The best leaper in the animal kingdom is the puma, which can jump to a height of 11.5 ft when leaving the ground at an angle of 52°. With what speed, in SI units, must the animal leave the ground to reach that height? ___m/s

    asked by jay
  182. math

    x=((30)/(5.15+1.84i))+(5.15+1.84i) i= square root of (-1) final answer of x=10.3 please show me how you drive this equation to get the 10.3. thank you so much.

    asked by layth
  183. physics

    A net force of 295 N accelerates a bike and rider at 2.60 m/s^2. What is the mass of the bike and rider together?

    asked by vicki
  184. chem

    What mass of protons would be required to just neutralize the charge of 1.5 g of electrons? my teacher said .0015kg times 1e-/.00091e-27kg times 1pt/1e- times 1.67262e-27 over 1 p

    asked by Sara
  185. Chemistry - repost

    Why 7ml of 10M HCl? Do I add 7ml of 10M HCl 1st slowly in ice bath, then slowly adjust the pH to 7 using 10M HCl? Then to dilute to 15ml in a graduated cylinder? Thanks Posted by candy on Tuesday, September 21, 2010 at 10:03am. The following is part of a

    asked by candy
  186. Math

    ALL the factors for 1,498,677,308,996? It's taking me too long....o.o Thank ye for the help! xD I thank: Ms. Sue for answering my Economics question, you rock! Someone please answer this! Lots of love from Pancake

    asked by The Official Pancake Queen
  187. maths

    32 divides n-6 and 64 does not divide n-6.find the highest power of 2 dividing n+2 and n+6?

    asked by chandra
  188. Algebra

    factor: 1. 6x^2y+4xy^3+10x^4y^4 2. 27m^3-8 3. 6n^8-11n^4-10 4. nx^2+x^2-9n-9

    asked by Anonymous
  189. english

    what does this line mean? A man being sometimes more generous when he has but a little money than when he has plenty

    asked by Lilly
  190. Chemistry - help

    This is a test for chlorides in NaOH sample. 1.0g of NaOH was dissolved in 5ml of distilled water, acidified with 4ml of dilute nitric acid and diluted to 15ml with distilled water. This mixture was poured into a test tube containing 1ml of AgNO3 solution.

    asked by candy
  191. chemistry

    1L soulution has a pH of 6 how many OH- would it tak eto make it a pH7 solution?

    asked by ad
  192. physics

    The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 true for false The magnitude of V3 can be -3.0 m/s The x-component of V3

    asked by Anonymous
  193. math-factoring

    (test next period) PLEASE HELP!! x4-13X2+36 how DO YOU FACTOR THIS I TRIED EVERYTHING HELP!!!

    asked by racheal
  194. physics

    You push a large 32 kg crate across the floor with a force F=330 N at an angle of 21 degrees below the horizontal. If the coefficient of kinetic friction between the crate and the floor is 0.45, what is the acceleration of the crate?

    asked by Ka
  195. Algebra

    72+24x=288? What to do with the plus sign after I subract 24 from each side?

    asked by Courtney
  196. math

    x.y=30 and x+y=10.3 ,what is x & Y. final answer is x=5.15+1.86i and y=5.15-186i, this way is by try and error (logic). but can somebody please show me how you do it by aljebra, please, thank you.

    asked by layth
  197. calculus

    The position of a particle moving in a straight line during a 2-second trip is given below. s(t) = 2t 2 - 6t + 7 cm (a) What is the average velocity for the entire trip? (Assume the 2 second interval starts at t = 0.) 1 cm/second (b) Find a time at which

    asked by Mike
  198. Science

    What is a light year? How long does it take for light to reach the Earth from the Sun?

    asked by Jim
  199. Algebra

    Simplify the rational expression. (45y-9xy)/(x^2y-25y) I got an answer of 9y/y(x+5) but it seems to be wrong Could anyone see what I did wrong. Thank you

    asked by Anonymous
  200. biology

    C6H12O6=180 gm to make 1M how much H2O will you need? to make a o.1M how much H2O will you need?

    asked by ad
  201. Math

    2a²+5a+3

    asked by Rox
  202. communication

    What are the concepts of assertive communication? What are the benefits of being an assertive nurse? The only thing I can come up with is that being an assertive nurse would allow you to stand up to a physician or authority when you feel they have done

    asked by Angela
  203. Physics

    Show that the pressure P of a gas can be written as: P= 1/3* p* v^2

    asked by Beth
  204. Astronomy

    A photon of which color of light carries the least energy. Red Yellow Green Blue All photons have the same energy.

    asked by Dre
  205. physics

    an object is launched horizonally from the top of a lab table that is .90 meters tall. it lands 2.75 meters away. what was the initial horizontal launch speed of the devise? the launcher is now angled 12 degrees below the horizontal. this raises the

    asked by payal
  206. Accounting

    Can financial statement users of not-for-profit hospitals’ financial statements expect to be fully informed regarding affiliated parties, such as the linkage between St. Jude Children’s Research Hospital, ALSAC, and the foundation cited?

    asked by Anonymous
  207. Chemistry - bobpursley pls help

    Posted by candy on Tuesday, September 21, 2010 at 3:12pm. Yes, my NaOH is granular. Why 7ml of 10M HCl? Do I add 7ml of 10M HCl 1st slowly in ice bath, then slowly adjust the pH to 7 using 10M HCl? Then to dilute to 15ml in a graduated cylinder? Thanks

    asked by candy
  208. Algebra-Please help-I'm confused

    This deals with quadratic functions-If I have a graph with h = (-5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-5,3} Do you take the opposite of the number when it is transalated from the graph or do you

    asked by Tom
  209. 6th grade

    I keep mine on a bookshelf my dad and I built ourselves. I, mine, my, I=pronouns bookshelf, dad=nouns I have to identify all of the nouns, pronouns and adjectives.

    asked by Summer
  210. Math

    1/4=3-2x-1/x+2..so far i have 8x^2-19x+4=0 do i use quadratic formula to solve the rest of the way?

    asked by Roger
  211. Math

    How to solve this: ((x-3)(x+2))/((x-1)) < 0 I don't understand since theres x-1 in the denominator

    asked by Amy~
  212. Chemistry - more advice needed thanks

    I obtained a lot of dirty brown ppt the moment the mixture was poured into AgNO3 solution. Does this mean my NaOH sample contains a lot of chlorides? Could other silver halides be present? However for my control solution of 50ppm sodium chloride solution,a

    asked by candy
  213. Computer Science

    Mythical Man question: If it takes one person 3 months to complete a task, why does it take 4 people 6 months to complete the same task?

    asked by Fayetta
  214. math

    In a local college, 60% of the math majors are women. Fifteen math majors are chosen at random.

    asked by michelle
  215. math

    i have math homework and it says i have to find 1 pair of rectangle that are simular and find the scale factor but i cant find the scale factorthe k rectangle is 4 cubes base by 3cubes height and n rectangle is 12 cubes base and 1 cube height but i cant

    asked by hawk
  216. PHYSICS

    Taylor Swift leaves Philadelphia for a concert in Dallas. Kellie Pickler leaves at the same time, but in a different tour bus. After 2 hours, Taylor's bus has traveled 50% further than Kellie's bus. If Taylor's bus is going 30mph faster than kellies's bus,

    asked by James
  217. chemistry

    this is over significant digits. -Indicate how many significant figures are in each of the following measurements: e) 4.0 X 10-5 kg i got 1 significant digit, but i'm not sure it if it's right... (& i can't ask my teacher, the situation is complicated)

    asked by Ana
  218. Geography

    What is the second longest river in North America?

    asked by Emily
  219. Com 220

    what types of introduction and what type of conclusion do you plan to write for your research paper

    asked by Pam
  220. 11th grade

    Having problems with proving segment relationships in paragraph proof forms in geometry.

    asked by Colt
  221. chemistry

    What is the volume in milliliters of 7.24 {\rm g} of acetone?

    asked by cathie
  222. 11th grade

    When the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 3.8 m/s2 as it slows from 8.8 m/s to 0 m/s. Find the time interval of acceleration for the bus. Answer in units of s.

    asked by Taylor
  223. math

    1. state the domain of f(x)= x-2/x^2-x-6 2. given that f(x)=x^2+1 and g(x)= 3x+2, find all values of x such that f(g(x))= g(f(x)) 3. if f(x)= x^3-3x^2-2x+5 and g(x)=2, fin the value of g(f(x))

    asked by Amy
  224. Physics

    You push your couch a distance of 3.8 m across the living room floor with a horizontal force of 180.0 N. The force of friction is 136.0 N. What is the work done by you, by the friction force, by gravity, and by the net force? you 1 friction force 2 gravity

    asked by Gina
  225. Honors Physics

    A mass, m1 = 5.00 kg, resting on a frictionless horizontal table is connected to a cable that passes over a pulley and then is fastened to a hanging mass, m2 = 9.0 kg. Find the acceleration of each mass and the tension in the cable. PLEASE HELP!

    asked by Chubba
  226. math

    4/5 - 2/y = 2/15

    asked by Joe Joe
  227. English

    I still have some doubts about a few questions. Thank you for the help. 1) Are they both possible? What did Kurtz struggle against when dying/when he was close to dying? 2) I'm wearing braces because I've got crooked teeth. 3) I hardly ever put make-up on

    asked by Franco
  228. 6th grade social studies

    What caused the end of the Old Kingdom? My answer is from my reading the chapters is--- Pharaohs losing power as nobles battled one another caused the end of the Old Kingdom. Is this correct?

    asked by Reed
  229. physic

    The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 true or false for each question The magnitude of V3 can be -3.0 m/s The

    asked by emma
  230. Algebra 7th grade

    My teacher has me working on something he calls "tinging fractions". What is this? What does it mean? How does it work?

    asked by Lila
  231. sociology

    which research technique (survey, observation,experiment, existing sources) would you find most useful when you have been asiigned to do a study of homelessness

    asked by Anonymous
  232. statistics

    if there 60% math major are women, 15 were random. what probility 12 women were are selected and what are the mean and variance. Show ne how to work the problems

    asked by landa givens
  233. Chemistry

    Find the limiting reagent. 2 NH4 (g) + 4 CuO (s) ==> N2(g) + 4 Cu(s) + 4H2O (g) Please explain, thank you!

    asked by Jack
  234. Computer Graphics

    How do you make animated computer graphics, ya know, the ones that move? :S Please answer!!! xD With love, Pancake

    asked by The Official Pancake Queen
  235. CIS 105

    Here is the assignment: Use information and data obtained from at least four reliable internet sources to produce a 12- to 15-slide PowerPoint® presentation about multimedia tools that aid classroom instruction. Include details about how each might

    asked by Kiana
  236. calculus

    I have an even number of coins in my pcket exactly one third of them are dimes. Draw or stampo the coins i could have in my pocket. Record thir value.

    asked by jose
  237. Algebra 1

    Find all sets of four consecutive even whole numbers whose sum is less than 35

    asked by Anonymous
  238. Algebra

    Perform the indicated division 2x^2-7x-13/x-5

    asked by Joe
  239. science

    1.Describe how the hot water and the cold water moved when the divider was lifted. 2.Use your understanding of density to explain the motion of the water.

    asked by Misa
  240. physics

    An artillery shell is launched on a flat, horizontal field at an angle of α = 31.5° with respect to the horizontal and with an initial speed of v0 = 266 m/s. What is the horizontal distance covered by the shell after 9.44 s of flight?

    asked by emma
  241. college math

    solve absolute value 2x-20 absolute value=absolute value 9x+ ansolute value 15 |2x-20|=|9x+15|

    asked by Anonymous
  242. science

    please can you write a summary of maintaining an enviroment through conservation.

    asked by Jolomi skinn
  243. Algebra

    Please help How do I solve the quadratic equation 3x^2 + 5x + 2 =0 Please explain the steps-I really don't get this

    asked by Anita
  244. PHYSICS

    Taylor Swift leaves Philadelphia for a concert in Dallas. Kellie Pickler leaves at the same time, but in a different tour bus. After 2 hours, Taylor's bus has traveled 50% further than Kellie's bus. If Taylor's bus is going 30mph faster than kellies's bus,

    asked by Anna
  245. Sociology college

    Hello! i need help my homework In a Gemeinshaft society,people are more likely to 1) be highly dependent on the nuclear rather than the extended family 2) view life and morals in terms of how they affect the individual 3) stress formal education as a

    asked by washington
  246. Algebra

    How do you do these type problems?: 1/5+M=-2/5 6x+8=32 4(1/2X+1/2)=2X+2 3-Y=X (Is ^ -3 on both sides?)

    asked by Laura
  247. physics

    Consider a simple harmonic oscillation with m=0.5kg, k=10N/m and amplitude A=3cm. What is the total energy of the oscillation?

    asked by Mpho mj
  248. Math: Inequalities

    for this inequality: (x-1)(x-2)(x-3)

    asked by Amy~
  249. Calculus

    Show that the limit for [x^2cos(1/x)]=0 as x approaches 0. How would I solve this algebraically?

    asked by John
  250. college physics

    After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?

    asked by mary
  251. algebra

    In a triangle ABC , angle B is 4 times angle A and angle C is 17 degrees less than 5 times angle A. Find the size of the angles.

    asked by Sam
  252. Math

    if three times the complement of an angle is subtracted from its supplement the result ends up being 59 degrees. Find the measure of the angle.

    asked by Jordyn
  253. Math

    Monica was collecting quarters and nickels in a jar. She kept track of the total value of the coins, as well as, how many coins were actually in the jar. However, she forgot specifically to track how many of each coin there is in the jar. If the total

    asked by Flor
  254. Algebra

    I have the qustion 2x+5=-7, and I've figured out that I have to subtract 5 from both sides. However, now I'm left with a plus sign that I don't know what to do with? What do I do next? HELP! THIS IS COMONG FROM A BALLERINA, AND I HATE MATH!

    asked by Brenda
  255. PHYSICSSS!

    A brass lid screws tightly onto a glass jar at 20 oC. To help open the jar, it can be placed into a bath of hot water. After this treatment, the temperature of the lid and the jar are both 60 oC. The inside diameter of the lid is 8.0 cm at 20 oC. Find the

    asked by JT
  256. Computer Science

    I previously asked a mythical man question, and I still don't quite understand it. If if takes one person 3 months to make a quilt, why does it take 4 people 6 months to make a quilt?

    asked by Fayetta
  257. physics

    I DON'T KNOW WHAT IM DOING WRONG!!!!!!NASA has built centrifuges to enable astronauts to train in conditions in which the acceleration is very large. The device in the figure below shows one of these "human centrifuges." If the device has a radius of 8.3 m

    asked by tom
  258. physics

    Suppose I throw a ball straight up at an initial speed of 10 m/s. Suppose I'm 2 meters tall (about 6 feet) and the ball leaves my hand at 2 meters from the ground. How fast is it going at its highest point? How fast is it going on its way back down at 2

    asked by Sarah
  259. science

    how can you tell the element of another

    asked by yuku
  260. Chemistry

    Why do you believe electrons exist?

    asked by angela
  261. algebra word problem

    We need help!. insurance plan A is $130 plus 25% cost to the patient. Plan B is $180 plus 20% of the cost to the patient. For what amount of medical bills will plan B save the patient money. Assume the patient has over $180 in bills. We are getting stuck

    asked by Team A
  262. science

    lists the properties of copper, sulfur aqnd copper sulfide

    asked by nana
  263. math

    What is the least common multiple of 32 and 45?

    asked by Anonymous
  264. math

    solve the given equation for the variable of x x/3+3/5=5/6

    asked by Anonymous
  265. health

    What are the ethicl considerations in obtaining a persons DNA?

    asked by Allie
  266. Chemistry - urgent

    The following is part of a procedure for a limit test for sulphates in an NaOH sample:- Dissolve 3.0g of NaOH in 6ml of deionized water, adjust to pH 7 with HCl (approx.7.5ml) and dilute to 15ml with deionized water. Please explain how to perform this

    asked by candy
  267. English

    I really need to have these sentences checked for tomorrow. Thank you very much in advance. Comprehension test on the abridged edition of Conrad’s “Heart of Darkness” Answer briefly the following questions 1.What was the first company trading post

    asked by Franco
  268. math

    find the linear function f(x(=mx+b whose graph has the given slope and y intercept. slope is +19/15 and y-intercept is (0,-4) the linear function is f(x)=

    asked by Anonymous
  269. 5th grade

    write a real word problem where you would multipy 120 and 75

    asked by kori
  270. Calculus, need help again...

    If the function f is defined by f(x)=x^2-2x, find limit h->0 (f(3+h)-(f(3-h))/2h

    asked by Leanna
  271. English

    Can you please tell me if the following sentences are possible? I really don't know how to say it in English. Thank you. 1) I do the shopping at the market every Saturday. (Should I consider it a mistake if the sentence started with "every Saturday"?) 2)

    asked by Franco
  272. Science

    If you do or do not believe in electrons can you explain why you do or do not?

    asked by angela
  273. science

    What is the ultimate source of energy that powers the wind? Is my answer correct? The ultimate source of energy is the difference in air pressure.

    asked by Reed
  274. physics

    an object is launched horizonally from the top of a lab table that is .90 meters tall. it lands 2.75 meters away. what was the initial horizontal launch speed of the devise? the launcher is now angled 12 degrees below the horizontal. this raises the

    asked by payal
  275. math

    what are the properties of a polygon

    asked by cherrio
  276. math

    I can't find the definition and a picture example of distance-time-rate of speed. Help!

    asked by Julia
  277. science

    What are the description of ecosystem of the procambarus carkii

    asked by cookie
  278. math

    find the other endpoint (x,11) of a segment given the endpoint (5,-4) and a distance of 17.

    asked by confused
  279. geography

    How can the layers of a GIS be manipulated??? THANKS SO MUCH FOR YOUR HELP!! :)

    asked by I NEED HELP NOW!!:)
  280. Science

    What experiment did Rudolph Virchow do? What prior information did he use to help him with his research/discovery? What tools did he need to complete his experiment?

    asked by Jay
  281. Chemistry

    Find the limiting reagent. 2 NH4 (g) + 4 CuO (s) ==> N2(g) + 4 Cu(s) + 4H2O (g) Please explain, thank you!

    asked by Jack
  282. algebra 1

    Which statistical method best represents this set of data? 1,2,5,2,3,7,300,5,3,3 a.mean b.median c.mode d.standard deviation I'm pretty sure it's B or C, but they are both the same number.

    asked by Lily
  283. Algebra

    Rewrite the division as multiplication. -84/(86)= -84*(_) Do not simplify.Type a fraction

    asked by Sam
  284. english

    i am doing a book report and i havent done one since the 5th grade and now i am in 7th HELP!!!!!!!!!!!!!!!!!!!!!!!!!

    asked by samantha
  285. algebra 1

    When studying probability, a method used for counting the number of possible outcomes is a ______. a.tree diagram b.dependent event c.relative frequency d.simulation A?

    asked by Lily
  286. math

    what is 6 to the second power

    asked by Kelly
  287. social studies

    what are these people famous for? like what did they do?: Henry the navigator Bartholomeu Dias hernan cortes queen isabella Ferdinand Magellan Martin Luther Montezuma Leif erikson

    asked by BrXce
  288. physics

    what is the charge of +11mC

    asked by john
  289. algebra

    explain why 1,734 is greater than 175?

    asked by nancy
  290. Social Studies

    What goes arund the world but stays in a corner?

    asked by Dorothy
  291. algebra

    explain how to compare 8,563 and 8,699?

    asked by javon
  292. MATH

    HOW MUCH LARGER THAN 3/4 INCHES IS 25/32?

    asked by Johnny Lee
  293. physics

    thank you bobpursley

    asked by john
  294. Math

    Jethro is an employee at the New Capitol T -Shirt shop makes $16.00 per hour, measured in quarter hours. If he begins work at 9.30 AM, what time it will be when Jethro has earned $100.00 ? ( can you please write the steps. thankyou )

    asked by thommini
  295. physics

    what is the equation for acceleration?

    asked by Anonymous
  296. 2nd grade

    i need a sentence with the word slid

    asked by aaron
  297. geography

    Rivers bring water for ______ and ____. ?????? Fill in the blank with no options.

    asked by Emily
  298. Physics

    Brett Favre is traveling from Minneapolis to Green Bay at 40mph. Aaron Rodgers is traveling from Green Bay to Minneapolis at 50mph. If they leave at the same time, how far from Minneapolis will they meet? Green Bay and Minneapolis are 260 miles apart.

    asked by Sammy
  299. Math

    Writing to Explain: How can you use models to show and name the number 1,400in two different ways? Expalin.

    asked by Amanda
  300. Literature

    What are some challenges faced b a king/leader in Anglo-Saxon society?

    asked by Anonymous
  301. Algebra

    Perform the indicated division 2x^2-7x-13/x-5

    asked by Joe
  302. Algebra

    How do I solve the quadratic equation 3x^2 + 5x + 2 =0 Please explain the steps-I really don't get this

    asked by Anita
  303. college

    Do you believe electrons exist and why or why not?

    asked by angela
  304. basic chemistry

    how do I find the ratio of when to solutes completely react?

    asked by dee
  305. 11th grade

    An automobile with an initial speed of 4.56m/s accelerates uniformly at the rate of 2.4m/s2. Find the final speed of the car after 4.4 s. Answer in units of m/s.

    asked by Taylor
  306. 11th grade

    An automobile with an initial speed of 4.56 m/s accelerates uniformly at the rate of 2.4 m/s2. Find the final speed of the car after 4.4 s. Answer in units of m/s. (part 2 of 2) Find the displacement of the car after 4.4 s. Answer in units of m.

    asked by Taylor
  307. 6th grade

    What is the simple and complex for this sentence. Making a bad grade on such an easy spelling test is such an embarrassment.

    asked by Ashleigh
  308. Physics

    The roadrunner leaves Pittsburgh at 7:15 in the morning at 10mph. He is headed toward Cleveland which is 131 miles away. If the coyote leaves 15 minutes later, what speed will he have to travel to get there at the same time as the road runner?

    asked by Anna
  309. math

    round 3.0083217 to the nearest hundredth

    asked by gam
  310. math

    -9--4

    asked by davis
  311. Algebra

    How do I solve a quadratic equation x^2 - x = 30 by completing the square- I don't understand-could someone just explain the steps to solving this

    asked by Jamie
  312. Math

    k+40=6

    asked by Anonymous
  313. Algebra II

    This deals with quadratic functions-If I have a graph with points h=-5, k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-5,3}

    asked by Tom
  314. maths

    how much greater is one quarter than one half

    asked by packman
  315. economics

    How does the federal government implement its fiscal policies? Given economic conditions today, do you suggest expansionary fiscal policy or contractionary fiscal policy? How would your suggestions affect production and employment? Why?

    asked by uop
  316. physics

    A fully loaded 737 aircraft takes off at 250 {\rm km/h}.

    asked by Anonymous
  317. english

    indentifying predicate nominatives and predicate adjectives in this sentence.. Do the strawberries on this vine look ripe to you?

    asked by brittany
  318. math

    3/4 - y/2 = 1/4 solve for y

    asked by Joe Joe
  319. Algebra

    Perform the indicated division 2x^2-7x-13/x-5

    asked by Joe
  320. writing

    what does it mean to " wright a tale that might have grown from it"?

    asked by evil
  321. spanish

    I don't know where accent marks go in this paragraph. Dentro de unos minutos van a mostrar una pelicula increible en la television. Se llama LOS PERUANOS PREHISTORICOS, y la narra el famoso actor Ricardo Montalban. El tiene una voz magnifica, sabes. La

    asked by Jennifer
  322. grammar

    I need help with an appositive worksheet that my teacher gave me, but i forgot it so need trouble help!

    asked by Victoria
  323. science

    Why is the sun classified as a G2?

    asked by Jim
  324. statistics

    60% of math major are women 15 were random and what probability that 5 are women.

    asked by landa givens
  325. science

    we have done experiment in school and for homework we must write chemical reactions that have happend during the experiment. the experiment was like this : first we took an unknown substance than we have put some CuO , we mixed that two substances together

    asked by ana
  326. physics

    how long do waves of frequency 7 hz and wavelength 5cm take to travel across a pool breadth 3.5 metres

    asked by Chris Grant
  327. Algerba 2

    Find H(-2)if H(x)=xto the third + 1

    asked by Kaitlin
  328. algebra

    Can you please explain how to solve this? How far an airplane would fly in 3h if its speed is 800km/h

    asked by Jessica
  329. Math

    Reasoning question... in order from least to greatest the six numbers whose digits are 2,8, and 9...

    asked by Kelsey
  330. English

    I want to ride. What parts of speech are to ride in this sentence.

    asked by Keith
  331. physics

    A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?

    asked by Anonymous
  332. science

    sedimentary rock is formed from bits and pieces of dirt, clay and sand that have been carried. a) on the earth's crust b) underground c) in rivers and streams d) over mountaintops

    asked by pam
  333. Economics

    What is a tertiary industry? Please give me a specific answer please! =3 Thank ye! -Pancake

    asked by The Official Pancake Queen
  334. spanish1 homework check

    1 5:15 las cinco y cuarto 2 6:12 doce, despues de seis 3 7:40 viente hasta que ocho 4 3:55 hasta que cinco cuatro 5 1:15 trimestre despues de un 6 12:45 es la una menos cuatro 7 12:00 son las doce 8 2:25 vienticinco des pues de dos 9 3:05 cinco des pues de

    asked by whitney
  335. math

    the frist grid is not a magic square. Change some of the numbers so the sum of each row, column and diagonal is the same number. Change no more than two numbers.

    asked by Aitza
  336. math

    soltion for -3( -6)+(4)(-2)

    asked by davis
  337. Spelling

    What are blending words?

    asked by Anthony
  338. I.C.T

    what does RAM stad for????

    asked by chelsea
  339. geometry

    how do you find the measure of angle t if if the measure of angle t is 20 more than four times the measure of its supplement

    asked by quin
  340. Math

    How is 3x2 different from 3 to the 2nd power ?

    asked by Rose
  341. math

    (-6)2 (-4)2

    asked by davis
  342. science

    what happends when we burn magnesium metal

    asked by rebecca
  343. math

    how do you model 624 without using hundreds?

    asked by Anonymous
  344. spelling

    I need a sentence with the word squib

    asked by Kiyanna
  345. Chemistry

    Why would it be better to titrate a solution rather than just dilute it?

    asked by Jane
  346. PHYSICS

    The roadrunner leaves Pittsburgh at 7:15 in the morning at 10mph. He is headed toward Cleveland which is 131 miles away. If the coyote leaves 15 minutes later, what speed will he have to travel to get there at the same time as the road runner?

    asked by Anna
  347. ENGLISH

    I am having a hard time finding something on our president and the Texas Assessment of Knowledge and Skills can anyone help me. Do you know if he has ever said anything about the test or if the test will be stopped.

    asked by RT
  348. Math

    How do I write an equation or an inequality for this: the product of a number z and 12 is 60

    asked by Lizzy
  349. Economics

    What is a quaternary industry? Answers are very helpful. xD Thank ye for the help!!! xD Loads of love from Pancake

    asked by The Official Pancake Queen
  350. Chemistry

    What is the minimum mass of anhydrous CuSO4 needed to remove 12.4g H2O from a tankful of gasoline?

    asked by Kaylee
  351. Algebra

    Ok, so , I have the question: -5=-8+5f. I'ev figured out that I have to add 8 to both sides of the equation,but now I'm stuck because I'm left with -3+5f=? And I can't figure out what should be on the other side of the equals sign. Please help! I'm a

    asked by Amanda
  352. Math - Algebra

    How to solve ;; x-y

    asked by RIMA
  353. Microeconomic

    Are there any books out there that can show you how to conduct an economic case analysis?

    asked by Marcel
  354. Algebra

    Perform the indicated division 2x^2-7x-13/x-5

    asked by Joe
  355. science

    A MODEL OF A RESPIRATORY SYSTEM AND HOW U WENT ABOUT IT AND THE METHODS OR DESCRIPTINONS WITH THYE USE OF CORKS BALLONS SYTRAW AND OTHER THINGS.

    asked by Jolomi skinn
  356. Science

    a cumulus cloud is growing taller, what will happen to the density of the air beneath it? explain

    asked by Misa
  357. math

    in which number does 4 have the greatest value 9499 4391 2240 1944

    asked by joel
  358. Algebra

    This deals with quadratic functions-If I have a graph with he = (-5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {-5,3} Do you take the opposite of the number when it is transalated from the graph or do you

    asked by Tom
  359. Algebra

    I need to division which is (x^2-6x-27)/(x+3) when I do it I get an answer of (x-9)-27/x+3 but it seems to be wrong. Can someone see what mistake I did... THANKS

    asked by Joe
  360. 3rd grade

    Ashton broke apart a numer into 31+7. What number did he start with?

    asked by Nicole
  361. Math

    what is the first step of figuring out what -5=-8+5f?

    asked by Erika
  362. 3 grade

    explain why 24,005 is greater than 8,999.

    asked by Anonymous
  363. 6th grade social studies

    Okay for the when part of When did the cultures of Egypt and Nubia start to mix. My answer would be when the New Kingdom started to decline. Is this correct?

    asked by Reed
  364. geometry

    write the definition " a prime number is a whole number greater then 1 and has exactly two factors" as a biconditional. i really need help on this!!i!!

    asked by crystal
  365. Science

    What are the three classification of rock?

    asked by Jim
  366. math

    mary has 22 ribbons some of the ribbons are first place what expression shows how many of mary ribbons are not for first place

    asked by michelle
  367. Math

    Info Sean is buying a new DVD player for 315. the store offers him an interest-free payment plan that allows him to pay in monthly installments of $25. Ques. Use n to stand for number of payments and a for the amount still owed. Write an equation for

    asked by Zoe
  368. Math (Algebra Grade 8)

    2x+5=-7?

    asked by Erika
  369. 3rd grade

    explain how to compare 8,563 and 8699

    asked by Anonymous
  370. physics

    A supply plane traveling 200 KM/hr need to drop supllys to a target 110 meters below. How many seconds before they are over the target do they have to drop the supplies?

    asked by Anonymous
  371. Physics

    two long separated friends, june and bill, spot each other in an airport terminal from a distance of 25m. they start to run towards each other. bill accerlates at a constant rate of 1.5m/s2, and june at a constant rate of 1.2m/s2. how far from junes inital

    asked by Sam
  372. Business Math

    Calculate the simple interest and maturity valve for the following problems. Round to the nearest cent as needed. 18,000,4 1/2%,18mo.

    asked by Sandra
  373. math fraction

    11/12x 40

    asked by Anonymous
  374. Math

    How do you write the rule for a function with the table x=0,2,4,5 y=4,6,8,9 ?

    asked by Ryan
  375. Spanish

    Indicate the relationships between the family members listed below Modelos: yo / mi tía Yo soy el (la) sobrino(a) de mi tía. mis abuelos / mi padre Mis abuelos son los padres de mi padre 1.mi madre / mi hijo(a) 2.mis primos / mi mamá I have the rest of

    asked by christopher
  376. english

    Make a list of expressions that are followed by the '-ing' form

    asked by julia
  377. math

    -19/15 and y - intercept is 0-4

    asked by Anonymous
  378. chemistry

    would like to know the complex ion of H2SO4

    asked by kary
  379. MATH

    Perform the indicated division 2x^2-7x-13/x-5

    asked by Joe
  380. english/nursing

    Why is nursing considered a professional career? I have to write a paper on professionalism and how nurses represent this.

    asked by Angela
  381. Physics

    Suppose I measure the velocity of an object at two different times, t1 and t2. If I tell you that the uncertainty in velocity is 0.1 m/s for each point, then calculate the uncertainty in acceleration if t1 = 0.0 s and t2 = 0.01s.

    asked by Sarah
  382. Science

    Why do you believe electrons exist?

    asked by angela
  383. Math

    1. if f(x)= 2x^2+ Ax^2 + 4x-5 and f(2)=5, what is the value of A? 2. state the domain of f(x)= x-2/x@-x-6

    asked by Amy