1. math

    a stoplight flashes red for 50 seconds, yellow for 5 seconds, and green for 65 seconds. For what fraction of a 24-hour day is the stoplight yellow?

    asked by henry on May 5, 2011
  2. math, 5th grade

    I am really stuck on how to figure this answer out, could you please help me? A stoplight flashes red for 50seconds, yellow for five seconds, and green for 65 seconds. In a 24 hour period, how long is the light red?

    asked by phoebe on December 3, 2010
  3. Math

    the green light flashes every 3 seconds,the red every 5 seconds and white at 10 seconds. iF they flash at 12 noon.When will they flash together again in a minute? in an hour?

    asked by Anonymous on July 8, 2013
  4. Math

    If a red light flashes every 3 seconds, a blue light flashes every 4 seconds and a blue light flashes every 5 seconds and they all flashed together at midnight when would be the next time they all flash together?

    asked by CHLOE on September 30, 2016
  5. maths

    a blue light flashes every 8 seconds and a red light flashes every 12 seconds both lights have just flashed together how many secons will they flash together

    asked by mr c on September 15, 2017
  6. algebra

    A TRAFFIC LIGHT IS RED FOR 38 SECONDS YELLOW FOR 10 SECONDS AND GREEN FOR ONE MINUTE AND TWELVE SEONDS. IN A CONSTANTLY REPEATING CYCLE, WHAT IS THE PROBABILITY THAT AT THE MOMENT A PASSING PEDESTRIAN GLANCES AT IT, THE LIGHT WILL BE GREEN

    asked by ART on June 2, 2010
  7. math

    a red light winks every 6 seconds, a white one every 10 seconds, and a green one every 14 seconds. how often they wink together?

    asked by sean on October 3, 2012
  8. math

    on a radio tower, a red light flashes every 6 seconds and a blue light flashes every 10 seconds. if both lights flash together at a certain time, how many seconds later will both lights flash together the next time

    asked by sh on July 23, 2016
  9. Chemistry

    Fireflies flash at a rate that depends on the temperature. At 29oC, the average rate is 3.3 flashes every 10 seconds, whereas at 23oC, the average falls to 2.7 flashes every 10 seconds. Calculate the "energy of activation" (in kJ/mol) for the flashing

    asked by Jacob on February 5, 2017
  10. math

    A traffic light follows the pattern green, yellow, red for 55, 5, and 20 seconds, respectively. What is the probability that the driver approaching this light will find it green or yellow?

    asked by Anonymous on July 6, 2013
  11. Physics

    If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time. A. 1.9 seconds B. 2.5 seconds C. 5.6 seconds D. 6.7 seconds E. 7.1 seconds

    asked by Lauren01 on February 22, 2012
  12. Physics

    If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time. A. 1.9 seconds B. 2.5 seconds C. 5.6 seconds D. 6.7 seconds E. 7.1 seconds

    asked by Lauren01 on February 22, 2012
  13. Algebra - word problem

    A red ball and a green ball are simultaneously tossed into the air. The red ball is given an initial velocity of 96 feet per second, and its height, t seconds after it is tossed is (-16t^2 + 96t) feet. The green ball is given an initial velocity of 80 feet

    asked by lindy on November 30, 2009
  14. mathematics

    A bell rings every 2 seconds, and a bird chirps every 3 seconds. If the ring ant the chirp occur together right now, they will occur together in A. 40 seconds B. 41 seconds C. 42 seconds D. 43 seconds

    asked by Artem on August 13, 2014
  15. Math

    A bell rings every 2 seconds, and a bird chirps every 3 seconds. If the ring and the chirp occur together right now, they will occur together in A. 40 seconds B. 41 seconds C. 42 seconds D. 43 seconds

    asked by Artem on August 13, 2014
  16. Statistics

    Waiting times to receive food after placing an order at the sandwich shop follow an exponential distribution with a mean of 46 seconds.? Calculate the probability a customer waits: a.) Less than 26 seconds b.) More than 105 seconds c.) Between 38 and 60

    asked by Terrance on October 19, 2014
  17. physics with 6 questions

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.3 m/s2 for 3.9 seconds. It then continues at a constant speed for 13.7 seconds, before applying the

    asked by David on August 27, 2012
  18. physics

    Q: Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.7 m/s2 for 3.2 seconds. It then continues at a constant speed for 8.8 seconds, before applying the

    asked by Alex on February 8, 2018
  19. Calculus (Derivatives)

    Two particles are moving in straight lines. The displacement (in meters) of particle 1 is given by the function e^(4cos(t)) , where t is in seconds. The displacement (in meters) of particle 2 is given by the function -(t^3)/(3) - (t^2)/(2) + 2 , where t is

    asked by Mishaka on October 29, 2011
  20. math

    If a ball is thrown into the air with a velocity of 48 ft/s, its height in feet t seconds later is given by y = 48t − 16t2. (a) Find the average velocity for the time period beginning when t = 2 and lasting for each of the following. (i) 0.5 seconds ft/s

    asked by Dann on January 31, 2018
  21. calculus

    If a ball is thrown into the air with a velocity of 48 ft/s, its height in feet t seconds later is given by y = 48t − 16t2. (a) Find the average velocity for the time period beginning when t = 2 and lasting for each of the following. (i) 0.5 seconds ft/s

    asked by Dann on January 31, 2018
  22. Health

    Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds B?

    asked by Martin1162 on March 14, 2016
  23. health

    Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds I think its B

    asked by Allison on November 30, 2015
  24. Physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.6 m/s2 for 4.5 seconds. It then continues at a constant speed for 7.3 seconds, before applying the

    asked by Shreyas on January 6, 2014
  25. maths

    a light house flashes every 56 seconds. Another lighthouse flashes every 40 seconds. At 9 p.m. they both flash t the same time. What time will it e when they next both flash at the same time?

    asked by chelsea on September 26, 2010
  26. Physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 4.8 m/s2 for 4.5 seconds. It then continues at a constant speed for 9.9 seconds, before applying the

    asked by Jeel on January 22, 2011
  27. Algebra 1

    Hi, I have this question to answer and I am just really confused I don't know where to begin we haven't had a question like this so I'm totally bewildered. Anyway here is my question. Any help is greatly appreciated! Thank you so much for your time!!!

    asked by Smiley101 on November 22, 2016
  28. Calculus

    If a ball is thrown straight up into the air with an initial velocity of 95 ft/s, its height in feet after t seconds is given by f(t)=95t−16t^2 Find the average velocity for the time period beginning when t=1 and lasting (i) 0.5 seconds (ii) 0.1 seconds

    asked by Robin on May 31, 2013
  29. Physics

    A car sits at a red light. Once the light turns in green, the driver accelerats at a rat of 3.5m/s^2. How far has the car moved after 6 seconds? I have so far d= (1/2)at^2 please check is it (1/2)(3.5m/s^2)(6 seconds) is the answer 1.75 m/s^2 x 6 sec=10.5

    asked by Tracy on January 16, 2012
  30. Physics

    A car accelerates from rest with a uniform acceleration of 1.7m/s for 10 seconds, its acceleration then reduces by 0.3m/s for 20 seconds of the motion, it then maintains the speed attained for another 20 seconds after which it decelerates to rest within 10

    asked by Kelly on November 11, 2015
  31. physics

    A car stops for a red ligth. The light turns green and the car moves for 3 seconds at a steadily increasing speed. During this time, it travels 20 meters. The car then travels at a constant speed for another 3 seconds for a distance of 30 meters. Finally,

    asked by Anna on January 22, 2012
  32. physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.5 m/s2 for 4.9 seconds. It then continues at a constant speed for 6.7 seconds, before applying the

    asked by kayle on January 27, 2014
  33. math (NEW ANSWERS)

    identify the fraction that is equivalent to 3/8. A.15/32 B.12/32(I PICKED THIS) C.12/24 D.9/32 -------------------------- A video game has three villains who appear on screen at different intervals.one villain appears every 5 seconds,a second villain

    asked by matt on November 20, 2013
  34. math

    Six boys ran a 100m race.Time taken to run the race is 14 seconds. The time in seconds taken by each boy is shown below. Al - 11 seconds Ben 12 Seconds Che - 14 Seconds Don - 12 Seconds Eze - 10 Seconds and Fred - 13 Seconds a) Who won the race b) For

    asked by indira on April 13, 2017
  35. algebra

    Height difference. A red ball and a green ball are simultaneously tossed into the air. The red ball is given an initial velocity of 96 feet per second, and its height t seconds after it is tossed is 16t2  96t feet. The green ball is given an initial

    asked by joyce on July 23, 2010
  36. Algebra

    Height difference. A red ball and a green ball are simultaneously tossed into the air. The red ball is given an initial velocity of 96 feet per second, and its height t seconds after it is tossed is -16t2 + 96t feet. The green ball is given an initial

    asked by Debbie on February 27, 2009
  37. maths

    a lighthouse flashes 3 seconds the second 4 and the third 5 seconds they flash initially al together when will they flash again together

    asked by alex on November 4, 2015
  38. Math

    4 members of a relay team each ran one lap of a race. THeir times were 58.4 seconds 58.07 seconds 57.8 seconds and 58.46 seconds. Put the numbers in order from fastest time to slowest time 57.8 58.07 58.40 58.46

    asked by Jerald on October 16, 2012
  39. physics help!

    A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

    asked by Adam on September 2, 2009
  40. Physics

    A car accelerates at a constant rate from zero to 36.8 m/s in 10 seconds and then slows to 13.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds

    asked by Me on July 8, 2010
  41. Physics, Please help!!!

    A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds

    asked by Siri on September 2, 2009
  42. Physics

    Can someone help me with these questions? I don't want the answers just some direction in how to solve them. A motorcycle at a stoplight takes 4.22 seconds to accelerate to 28.0 m/s after the light turns green. What is its average acceleration? An object

    asked by Anonymous on August 7, 2018
  43. Science- Physics Problem

    I don't know if im doing these problems right, please help... A car accelerates at a constant rate from zero to 32.6 m/s in 10 seconds and then slows to 14.8 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15

    asked by Leslie on September 2, 2009
  44. Physics

    A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds?

    asked by Julie on January 24, 2012
  45. Math

    A model airplane is shot up from a platform 1 foot above the ground with an initial upward velocity of 56 feet per second. The height of the airplane above ground after t seconds is given by the equation h=-16t^+56t+1, where h is the height of the airplane

    asked by Ben on July 24, 2014
  46. statistics

    According to a bank, the time taken by its customers to use cash dispensing machines is normally distributed with a mean of 18 seconds and a standard deviation of 3 seconds. I) What is the probability that a customer selected at random takes less than 13

    asked by victor on November 5, 2011
  47. intergrated science

    Keiko is riding a skateboard 2 m/s, west. How long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s2? 3 seconds 6 seconds 8 seconds 10 seconds

    asked by Anonymous on September 10, 2012
  48. Math

    At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14 seconds, 21 people finished in 15 seconds, 2 people finished in 16 seconds, and 2

    asked by Alex on September 14, 2015
  49. Geometry Part 2

    At a track meet,50 people ran the 100- meter dash.2 people finished in 11 seconds,5 people finished in 12 seconds,8 people finished in 13 seconds,10 people finished in 14 seconds,21 people finished in 15 seconds,2 people finished in 16 seconds,and 2 people

    asked by Karen on April 16, 2013
  50. Math

    . At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14 seconds, 21 people finished in 15 seconds, 2 people finished in 16 seconds, and

    asked by Ashley on May 6, 2015
  51. Math

    A density graph for all of the possible times from 50 seconds to 200 seconds can be used to find which of the following? A. The probability of a time from 75 seconds to 250 seconds B. The probability of a time from 75 seconds to 150 seconds C. The

    asked by Anonymous on February 11, 2018
  52. Math

    I have my answers but need them checked and i probably got them wrong so if you can please explain. #1: Which of the following sample spaces correctly lists all the possible outcomes for flipping a coin and spinning a four-colored spinner (red, blue,

    asked by Leilynn22 on May 23, 2016
  53. physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 4.6 m/s2 for 4.4 seconds. It then continues at a constant speed for 8.5 seconds, before applying the

    asked by a on September 13, 2011
  54. Calculus

    If a ball is thrown straight up into the air with an initial velocity of 95 ft/s, its height in feet after t seconds is given by f(t)=95t−16t^2 Find the average velocity for the time period beginning when t=1 and lasting (i) 0.5 seconds (ii) 0.1 seconds

    asked by Abby on May 31, 2013
  55. algebra

    if an object is dropped from a height of 85 feet the function h(t)=-16t+85 gives the height of an object after t seconds aproximately, when will the object hit the ground A. 85 seconds B. 69 seconds C. 0.33 seconds D. 2.30 seconds***

    asked by avg joe who didnt go on April 29, 2019
  56. tech III math ( ACT Prep)

    A neon sign flashes every 4 seconds, another neon sign flashes every 6 seconds. If they flash together,how manyseconds later will they flash together again?

    asked by Jennifer on June 3, 2013
  57. Algebra

    Radio signals travel at a rate of 3*10^8 meters per second. How many seconds would it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 4.2*10^7 meters? (Hint: Time is distance divided by

    asked by Kaai97 on March 3, 2016
  58. Math

    Reason A new student joins Ms. Sousa's class. That student can say the alphabet in 3 1/2 seconds. What is the new difference between the greatest length of time and the least length of time? A. 4 1/2 seconds B. 4 seconds C. 3 1/2 seconds D. 3 seconds

    asked by Mits on April 30, 2015
  59. physics

    please somebdy help me solveing this. Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 4.3 m/s2 for 3.3 seconds. It then continues at a constant speed

    asked by atif on September 20, 2014
  60. math

    Which of the following is the number of milliliters in 2 gallons? (Note: 1 gallon = 4.4 liters; 1 liter= 1,000 milliliters) A. 440 B. 880 C. 4,400 D. 8,800 i think its D The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs

    asked by manny on October 25, 2015
  61. algebra--1 question

    Radio signals travel at a rate of 3 * 10^8 meters per second. How many seconds would it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 9.6 * 10^6 meters? (1 point) 3.2 x 10^2 seconds

    asked by SkatingDJ on March 11, 2015
  62. Statistics

    A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds. What is the null hypothesis and the alternative hypothesis, what is the

    asked by Nicole on April 28, 2014
  63. Statistics

    A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds. What is the null hypothesis and the alternative hypothesis, what is the

    asked by Nicole on April 28, 2014
  64. 7th grade math (probability)

    I'm posting corrections from yesterday in addition to new ones. Still not sure how to answer #4. 2. Edwin rolls a number cube and then spins a color from a color card (red, yellow, blue, green, white). What is the probability that he will roll an even

    asked by Alexis on May 6, 2015
  65. 7th grade math (probability)

    I'm re-posting corrections originally from Wednesday in addition to new ones. Still not sure how to answer #4. 2. Edwin rolls a number cube and then spins a color from a color card (red, yellow, blue, green, white). What is the probability that he will

    asked by Alexis on May 8, 2015
  66. programming

    Prompt the user to enter a number of seconds. Return to the user the hours, minutes and seconds.Example: Enter seconds: 1000 1000 seconds = 0 hour, 16 minutes, 40 seconds Hint: use the modulus operator.

    asked by rj on September 25, 2012
  67. Physics

    A car accelerates at a constant rate from zero to 23.3 m/s in 10 seconds and then slows to 15 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s^2 during the 15 seconds?

    asked by Jay on August 28, 2013
  68. physics

    A car accelerates at a constant rate from zero to 37.8 m/s in 10 seconds and then slows to 13.5 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

    asked by wes on October 6, 2011
  69. physics

    A car accelerates at a constant rate from zero to 20.5 m/s in 10 seconds and then slows to 15.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

    asked by moon on February 19, 2012
  70. Math

    A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds. Connections answers please?

    asked by Anonymous on February 6, 2017
  71. physics

    what is the answer for this a car starts from rest at 0.8 meters pre seconds for 10 seconds and contiunes for a further 20 seconds what is the distance travelled

    asked by chadd on April 3, 2011
  72. Physics

    A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

    asked by Julie on January 24, 2012
  73. physics

    A car accelerates at a constant rate from zero to 28.7 m/s in 10 seconds and then slows to 17.5 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

    asked by r on February 20, 2012
  74. Physics

    a car accelerates at a constant rate from zero to 26.7 m/s in 10 seconds and then slows to 19 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s^2 during the 15 seconds?

    asked by Jason on January 13, 2012
  75. Physics

    A car accelerates at a constant rate from zero to 36.8 m/s in 10 seconds and then slows to 13.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

    asked by Me on July 8, 2010
  76. Math

    The completion times for three runners in a 100-yard dash are 9.75 seconds, 9.7 seconds, and 9.675 seconds. Which is the least time?

    asked by Yarielys on August 25, 2015
  77. math

    A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds. does anyone know because i have no clue here?

    asked by lol on February 13, 2019
  78. Physics

    Mary walks west at 2.0m/s for 15 seconds, then north at 3.0m/s for 2o seconds and then east at 4.0m/s for 0 seconds. What is her displacement answer is (108m(N56 DEgrees E)

    asked by Ivan on July 4, 2013
  79. Math

    It takes the earth about 31,558,100 seconds to circle the sun. By how many seconds does this exceed the number of seconds in 365 days?

    asked by Noah on December 6, 2009
  80. Calculus

    A particle moves along a line so that its posistion at any t is greater than or equal to 0 is given by the function s(t)= t^3-8t+1, where s is measured in feet and t is measured in seconds. a) find the displacement during the first three seconds b) Find

    asked by Ally on October 19, 2010
  81. Math

    Radio signals travel at a rate of 3x10^8 meters per second period how many seconds will it take for a radio signal to travel satellite to the surface of earth if the satellite is orbiting at a height of 4.2x10^7 meters? (Hint: Time is distance divided by

    asked by Valhalla on March 6, 2018
  82. sgfrsargehw

    . A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds

    asked by BLOBBY on March 18, 2016
  83. physics

    A car starts at rest then accelerates at a constant rate to 11.9 m/s in 10.0 seconds. It then slows to 1.5 m/s during the next 5.0 seconds. To the nearest hundredth of a m/s 2 , what is the average acceleration during the first 10.0 seconds?

    asked by taylor on February 26, 2014
  84. physics

    A car starts at rest then accelerates at a constant rate to 11.9 m/s in 10.0 seconds. It then slows to 1.5 m/s during the next 5.0 seconds. To the nearest hundredth of a m/s 2 , what is the average acceleration during the first 10.0 seconds?

    asked by taylor on February 27, 2014
  85. Math

    From a sample set of 10 colored balls--5 green, 3 red and 2 yellow-- 5 are chosen at random WITH replacement. What is the probability that the result will be: green, red, yellow, red, green? Write your answer as a four place decimal number. p(G,R,Y,R,G)

    asked by Jazz on March 13, 2016
  86. Math

    If an object is dropped from a height of 200 feet, the function h(t) = -16t^2 + 200 gives the height of the object after t seconds. Approximately when will the object hit the ground? a. 200.00 seconds b. 184.000 seconds c. 3.54 seconds d. 0.78 seconds

    asked by Anonymous on March 26, 2018
  87. maths(Please help me out)

    A survey of mobile call interconnectivity indicates that the average time it takes to connect calls from one network to the other is 25 seconds.Assume the variable is approximately normally distributed and the standard deviation is 4.5 seconds.if 80 calls

    asked by Ruby on May 4, 2016
  88. Physics

    A car moves at 12 m/s for 30.0 seconds. It then accelerates at 1.5 m/s^2 for 8.00 seconds. Finally, it continues on at this top speed for another 12.0 seconds. Calculate the net displacement during the whole time interval.

    asked by David on March 6, 2019
  89. Math

    1 mintue 25 seconds converted into seconds. I know there are 60 minutes in an hour and seconds 60 in a minute. Am I just dividing by 60??

    asked by Hannah on February 28, 2012
  90. statistics

    If a data set has a mean of 10.0 seconds and a standard deviation of 2.0 seconds, what is the Z score corresponding to the time of 4.0 seconds?

    asked by Desiree on August 14, 2010
  91. math

    A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 450 seconds and a standard deviation of 40 seconds.

    asked by nicole on April 16, 2010
  92. stats

    a sample of 16 atm transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. State the hypotheses to test whether the mean transactiontime exceeds 60 seconds

    asked by Anonymous on February 29, 2012
  93. physical science 2

    It takes 6 seconds for a stone dropped from rest to the bottom of a well,what is its final speed A; 6 meters/second B: 30 meters/seconds C: 36 meters/seconds D: 60 METERS/SECONDS A is incrrect

    asked by ellen on January 29, 2011
  94. Physics

    A ball is rolled off a horizontal roof at 6m/sec , after leaving the roof how long it will take to reach a speed of 10 m/sec? A. 0.20 seconds B. 0.81 seconds C. 1.8 seconds D. 2.5 seconds

    asked by SAGAR on July 5, 2016
  95. Algebra 1

    a boulder is thrown launched into the air with an upward velocity of 184 ft per second. Its height h in feet after t seconds is given by the function h(t)=-16t^2 +184t+6. How long does it take the boulder to reach its maximum height? What is the boulder

    asked by Steve on March 27, 2015
  96. Physics

    A car of mass 1200kg starts from rest, accelerates uniformly to a speed of 4.0 meters per second in 2.0 seconds and continues moving at this constant speed in a horizontal straight line for an additional 10 seconds. the brakes are then applied and the car

    asked by Ken on December 4, 2012
  97. statistics

    if a data se has a mean of 10.0 seconds & a standard deviation of 2.0 seconds, what is the z score corresponding to the time of 4.0 seconds?

    asked by thelma on February 18, 2011
  98. physics

    A wheel starting from rest is uniformly accelerated with alpha=4 rad/seconds square for 10 seconds. It is then allowed to rotate uniformly for the next two seconds and is finally brought to rest in the next 10 seconds. Find the total angle rotated by the

    asked by yogi on December 11, 2016
  99. 7th grade math

    Each of the first 4 pit stops a racecar driver makes loses ten seconds off the leader. The pit crew makes adjustments, and at each of the next two pit stops he gains 7 seconds on the leader. How much time is the driver off the leader? a. 40 seconds b. 14

    asked by Lauren on September 11, 2012
  100. physics

    A truck at rest at a stoplight accelerates uniformly with acceleration a = 8 meters/second2 for 5.5 seconds after the light turns green. What is the speed of the truck in meters/second after that time interval?

    asked by Kristina on September 18, 2011