1. Math

    A tire can hold C cubic feet of air. It loses a percentage of its air during each period of time, t. This rate of loss, written as a decimal, is r. This situation can be described using the following formula: C(1-r)^1. What effect, if any, does increasing

    asked by Patrick on August 29, 2018
  2. Pre calc

    An equation is given. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. Find All solutions of the equation 2sin(theta/3)+ square root three =0

    asked by Samantha on April 19, 2017
  3. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) cos(x)(9cos(x) + 4) = 4; [0, 2π)

    asked by Katlynn on March 6, 2013
  4. MATH

    A collar of Styrofoam is made to insulate a pipe. Find its volume The large radius is to the outer rim. The small radius r is to the edge of the insulation. Use π for 3.14. r = 3 in R = 5 in h = 18 in. Round 2 decimal places

    asked by CONFUSED PLEASE HELP on April 25, 2018
  5. calculus

    A variable force of 7x−2 pounds moves an object along a straight line when it is x feet from the origin. Calculate the work done in moving the object from x = 1 ft to x = 19 ft. (Round your answer to two decimal places.)

    asked by cynthia on March 15, 2017
  6. math

    Can you please help me I've tried over 30 times on this problem please show me the formula that I need to come up with the answer... Assume and 18 months Ed purchased for 7000 days and APR of 5% compounded monthly. What is the APY? They want me to round

    asked by matt on January 16, 2016
  7. calculus

    solve the following logarithmic equation. Be sure to reject any value of x that is not in the domain of orginal expression. then in the solution set round to two decimals places. Inx=8 I get e^8 But am having a hard time with rounding two decimal places.

    asked by Jennifer on January 1, 2013
  8. math

    Can you please help me I've tried over 30 times on this problem please show me the formula that I need to come up with the answer... Assume and 18 months Ed purchased for 7000 days and APR of 5% compounded monthly. What is the APY? They want me to round

    asked by matt on January 16, 2016
  9. Mathmatics

    A function of two variables is given by, f(x,y) = e^2x-3y Find the tangent approximation to f(0.989,1.166) near (0,0), giving your answer to 4 decimal places. Any kind soul to help on the problem. My professor raise this problem to me. i am so stuck.

    asked by Margaret on September 29, 2013
  10. Calculus help!

    A ball is shot into the air from a bridge, and its height, y, in feet, above the ground t seconds after it is thrown is given by y=f(t) = −16t2 + 55t + 33. What is the average velocity of the ball during the first second? Round your answer to two decimal

    asked by Jackie on February 6, 2013
  11. college algebra

    The rodent population in a city is currently estimated at 70,000 and is growing according to the Malthusian model. If it is expected to double every 3 years, when will the population reach one million? (Round your answer to one decimal place.)

    asked by Taylor on November 12, 2015
  12. College Algebra

    The rodent population in a city is currently estimated at 30,000 and is growing according to the Malthusian model. If it is expected to double every 9 years, when will the population reach one million? (Round your answer to one decimal place.)

    asked by Madison on April 12, 2016
  13. Algebra

    A person riding a Ferris wheel with a diameter of 64 feet travels once around the wheel in 25 seconds. What is the average speed of the rider in miles per hour? (Round your answer to one decimal place.)

    asked by Vicki on March 27, 2015
  14. STATs 353

    Find the 98% confidence interval for estimating ìd based on these paired data and assuming normality. (Give your answers correct to one decimal place.) Before 68,58,64,62,58,67 After 40,42,46,37,45,38 Lower limit: Upper limit:

    asked by Kim on April 2, 2013
  15. Math

    If boys and girls are equally likely to be born, what is the probability that in a randomly selected family of 8 children, there will be at least one boy? (Find the answer using a formula. Give your answer correct to three decimal places.)

    asked by Nora 59 on June 6, 2013
  16. chemistry

    2 Fe2O3 → 4 Fe + 3 O2 ΔHrxn = 824.2 kJ/rxn How much heat will occur in the decomposition of 72.7 g of Fe2O3 (FW: 159.687 g/mol)? (Write answer to a whole number, zero places past decimal point)

    asked by kenzie on June 15, 2018
  17. math

    The point P(8, 1) lies on the curve y = x − 7 . (a) If Q is the point (x, x − 7 ), use your calculator to find the slope of the secant line PQ (correct to six decimal places) for the following values of x. (i) 7.5 (ii) 7.9 (iii) 7.99 (iv) 7.999 (v) 8.5

    asked by Anonymous on September 14, 2018
  18. Aglebra

    A club consists of 16 men and 19 women. In how many ways can they choose a president, vice president, treasurer, and secretary, along with an advisory committee of six people? (Round the answer to five decimal places.)

    asked by Sue Jackson on August 28, 2012
  19. math

    The ochestra at stripling middle school is responsible for cleaning a 15 mile highway. there are 45 students in the orchestra. If each member cleans and equal section, what decimal represents this section? A.0.3 B.0.33 C.o.3333... D.3.0

    asked by kimberly fidhlsgdhlkghs on October 4, 2007
  20. Calculus

    Calculus Limit Problem: Evaluate the function at the given numbers (correct to six decimal places). Use the results to guess the value of the limit, or explain why it does not exist. f(x)=cosx-1/sinx x=1, .5, .4, .3, .2, .1, .05, .01 What should I do? A

    asked by George on June 22, 2010
  21. calculus

    Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis. (Round your answer to three decimal places.) y = e^−x y=0 x=0 x=7 I got the answer ~10.783 Idk why it's wrong

    asked by NAN on January 22, 2012
  22. Math

    Tia is investing $2500 that she would like to grow to $6000 in 10 years. At what annual interest rate, compounded quarterly, must Tia invest her money? Round your answer to two decimal places.

    asked by Dw about it on July 19, 2016
  23. calculus

    A plane flying along a straight path loses altitude at the rate of 1000 ft for each 5200 ft covered horizontally. What is the angle of descent of the plane? (Round your answer to one decimal place.)

    asked by Sam on January 29, 2012
  24. momentum and it's conservation physics

    when a fire hose is hook up to a water supple and the water is turn on the it frequently takes a firefighter to control the hose. why does a fire hose "recoil" when the water is turned on?

    asked by blaz3 on January 14, 2010
  25. math 117/algebra

    simplify comples fractions. w+3/4w-----w-3/2w it is w-3 over 4w over w-3 over 2w q/f divided by t/u is the same as q/f multiplied by u/t, or qu/ft Division is the reciprocal of multiplication. q/f divided by t/u is the same as q/f multiplied by u/t, or

    asked by Diana on July 11, 2007
  26. Math 6

    Can someone check my answer? Q:r. Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/8 miles. Who rides farther? A:Karen rode farther. This is because 3/8 is about 37/100 and 2/5 is 40/100. Since both fractions have 25 as a mixed number for them,

    asked by Lucy♥ on January 19, 2018
  27. Intergated chemistry/physics

    Draw a setup containing 3 gears. For every turn of the input gear, you need the output gear to spin 9 times. The drawing doesn't have to be perfect, but make sure to label the input gear, the output gear, and the number of teeth on each gear. Please E-mail

    asked by Laura on October 31, 2012
  28. physics

    A piece of ice its mass is 2.5 kg and at 0.0 C temperature , it is crawling on the ground with 5.7 m/s , what is the mass of the melted ice , if we know all of the kinetic energy of the ice turn into the internal energy (of the ice ) , that we need 3.3 X

    asked by MAD on August 26, 2015
  29. algebra2

    I am taking an online class, and cant understand why when I calculate ona ti84 plus an answer I get decimal answer and my teachers answer is sq root, is there something I am not doing on my calculator? How do I convert.

    asked by jeff on May 15, 2010
  30. math

    1:how do you order 3/4 , 7/8 ,and 13/6 from least to greatest. 2:how do you convert 2 2/4 ito an improper fractin. 3:how do you convert 3% into a decimal and how do you convert 4.56 into a percent ... i am in 6th grade by the way and make sure you provide

    asked by makiya on February 18, 2013
  31. Math

    For the following demand equation compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at the indicated price. (Round your answer to three decimal places.) x + (1/9)p - 27 =0 ; p=23

    asked by Tay on March 10, 2013
  32. Statistic

    A distribution has a standard deviation of ó = 9.5. Find the z-score for a score above the mean by 4 points. note: round to 2 decimal places, and enter the value of the z-score but do not write "z = " in your answer

    asked by Emilia on October 17, 2011
  33. Calculus

    For the following demand equation compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at the indicated price. (Round your answer to three decimal places.) x + (1/9)p - 27 =0 ; p=23

    asked by Tay on March 11, 2013
  34. physics

    One day while moving boxes you get tired and decide to use a rocket instead. You attach a small rocket of negligible mass to a 6.45 kg box. When you turn the rocket on, it provides a constant thrust of 212 N, and the sbox begins sliding across the

    asked by Fb on November 19, 2016
  35. Physics 11th grade 'Heat' `

    1) While Laurie is boiling water to cook spaghetti, the phone rings, and all 1.5 kg of water boils away during her conversation.If the water was initially at 15℃, how much heat must have been gained for all of it to turn into a water vapor? 2)By January,

    asked by Isis on March 16, 2013
  36. writing thesis

    So, I need a thesis statement for a research paper for Murder on the Orient Express. (Sorry to keep posting a new question each time) But I've thought about the answers you guys have given me and I'm thinking something along the lines of: "In certain

    asked by Chelsea on September 6, 2012
  37. physics

    A race car, starting from rest, travels around a circular turn of radius 20.8 m. At a certain instant, the car is still accelerating, and its angular speed is 0.515 rad/s. At this time, the total acceleration (centripetal plus tangential) makes an angle of

    asked by Katie on March 16, 2012
  38. physics

    Before leaving for a vacation£¬the owners of a home 8.0m *21m*5.0m turn the thermostat down to 14celcius. On their return£¬how much heat is needed to raise the temperature of the air inside the home to 21celcius£¿Ignore the heat needed to warm the

    asked by Anonymous on April 18, 2015
  39. physics

    A racing car, starting from rest, travels around a circular turn of radius 28.9 m. At a certain instant, the car is still accelerating, and its angular speed is 0.421 rad/s. At this time, the total acceleration (centripetal plus tangential) makes an angle

    asked by LostInLouisiana on October 25, 2010
  40. Finance

    Anderson International Limited is evaluating a project in Erewhon. The project will create the following cash flows: Year Cash Flow 0 –$690,000 1 243,000 2 175,000 3 256,000 4 231,000 All cash flows will occur in Erewhon and are expressed in dollars. In

    asked by Paul on March 19, 2014
  41. Chemistry

    To illustrate the calculation, assume that 21.95 mL of a thiosulfate solution is required to reduce the iodine liberated by 20.85 mL of 0.0200M KIO3 and that 18.63 mL of the same thiosulfate solution reacts with the iodine replaced by 20.00 mL of an

    asked by Marcus on April 26, 2013
  42. statistics

    You have hired a polling organization to take a simple random sample from a box of 200,000 tickets and estimate the percentage of 1s in the box. Unknown to them, the box contains 50% 0s and 50% 1s. How far off should you expect them to be if they draw

    asked by Anonymous on August 7, 2011
  43. English Help

    What is the author's main purpose in "Why leaves Turn Color in the Fall"? A She wants to persuade readers to stop pollution. B She wants to inform readers of scientific facts about autumn leaves. C She wants to explain the origin of macabre fall holidays.

    asked by Just do it on November 9, 2015
  44. Science

    What is the author's main purpose in “Why Leaves Turn Color in the Fall”? A. She wants to persuade readers to stop pollution. B. She wants to inform readers of scientific facts about autumn leaves. C. She wants to explain the origin of macabre fall

    asked by Anonymous on November 6, 2018
  45. English

    What is the authors main purpose in "Why Leaves Turn Color in the Fall"? A. She wants to persuade readers to stop pollution. B. She wants to inform readers of scientific facts about autumn leaves. C. She wants to explain the origin of macabre fall

    asked by carry on on September 13, 2018
  46. math

    write each decimal in standard form, expanded form, and word form. 12+0.2+0.005

    asked by shion on October 2, 2012
  47. MATH

    5. For the decimal 8.62354: What is the place value of 5? A) Hundredths B) Thousandths C) Ten-thousandths D) Hundred-thousandths Is it D

    asked by AJ on March 1, 2008
  48. geometry

    BC is an altitude with length of 30 of ƒ´ABD. AC has a length of 16 What is the length of CD? If necessary, round your answer to two decimal places.

    asked by tasha on June 27, 2010
  49. physics

    The blades of a fan running at low speed turn at 200 rpm. When the fan is switched to high speed, the rotation rate increases uniformly to 340 rpm in 5.92 s. How many revolutions do the blades go through while the fan is accelerating?

    asked by Kelsey on December 11, 2010
  50. physics

    THe steering wheel of a car has a diameter of 60cm and turns a shaft 4cm in diameter (a) If a 90nt force is needed to turn the wheel, what torque is exerted on the wheel? (b) What force is applied tangentially to the surface of the shaft?

    asked by bird on January 19, 2011
  51. Math

    Can anyone please rephrase this. I really can't understand this term. Rotation symmetry: When a shape or design can be turned about its center of rotation, so it fits onto its outline MORE than once in a complete turn(360 degrees) I don't understand this.

    asked by Sara on February 4, 2010
  52. computer programming

    Write a program that uses a 20x20 board, initialised to a given pattern, to play the game Conway's life . After each turn print out the board pattern using a . for a dead square and a * for a live square. Squares off the board are considered permanently

    asked by Ravinder Kaur on May 7, 2012
  53. math

    You are putting a brick walkway along two sides of a rectangular garden that measures 6 meters by 15 meters. The path will run the length of the garden, turn the corner, and run along the width. You only have enough brick to cover 46 square meters. How

    asked by Julia on February 4, 2014
  54. c programming

    Write a program that uses a 20x20 board, initialised to a given pattern, to play the game Conway's life . After each turn print out the board pattern using a . for a dead square and a * for a live square. Squares off the board are considered permanently

    asked by Ravinder Kaur on May 8, 2012
  55. computer programming

    Write a program that uses a 20x20 board, initialised to a given pattern, to play the game Conway's life . After each turn print out the board pattern using a . for a dead square and a * for a live square. Squares off the board are considered permanently

    asked by Ravinder Kaur on May 7, 2012
  56. trigonomitry

    a ship is spotted in a distance it is 10 nautical miles directly east and is traveling directly north at 5 knots . your ship is currently facing east and given the current winds can travel at 6+(.01}b knots. What angle should your ship turn to catch up to

    asked by Mike on December 7, 2016
  57. Biochemistry

    a closed circular DNA molecule has 3675 base pairs and a topological linking number (Lk) of 345. Using 10.5 base pairs per turn, what would the writhe number (Wr)be for the molecule in order for it to optimize its base pairing?? I'm guessing we use the

    asked by Anonymous on October 31, 2013
  58. Physics

    A 195.0-N sign is suspended from a horizontal strut of negligible weight. The force exerted on the strut by the wall is horizontal. Draw an FBD to show the forces acting on the strut. (Do this on paper. Your instructor may ask you to turn in this work.)The

    asked by Amy on May 21, 2012
  59. GRADE 10 MATH

    ok this your supposed to use the quadratic formula i think... ok a tunnel is 4 m wide and 4 m high. /|\ / | \ /__|__\ 4m and a truck is 2 m wide and has to drive through it (Through the middle). what is the maximum height that the truck can be? if your can

    asked by trish on December 7, 2006
  60. Trigonometry

    Find these quantities: i. Find all angles in the unit circle with secx=2.1754 . Give your answers in radians to 4 decimal places. ii. Find sec(arcsin(2x))

    asked by Rebekah on November 6, 2014
  61. qwertyuik

    An individual has a transition intensity of mortality for the next 10 years of μs=0.01s per annum (where s is the number of years from today). Calculate the probability (to 3 decimal places) that they will survive for the next 10 years

    asked by pratham on September 29, 2017
  62. how would I....

    how would I express the repeating decimal representaion of 1/9 as an infinite series using sigma notaion? Limit of (as n-> infinity) (Sigma) 0.1 + (0.1)^2 + (0.1)^3 +... (0.1)^n = 0.11111.... = 1/9 I think drwis did this right, It looks like lim n->infty

    asked by math! on October 19, 2006
  63. math

    The angle of elevation to the top of a building is found to be 5 degrees from the ground at a distance of 4 miles from the base of the building. Find the height of the building to 4 decimal places.

    asked by Anna on July 19, 2016
  64. math

    The following is a list of 11 measurements: -78, -1, 92, -24, 59, 21, 51, -2, 65, 37, 11 . Find 11 over sum,under sum i=l than Xi over 14 Round your answer to at least two decimal places. I get a sum of 231, now this is where I am confused. Do I divide or

    asked by Mary Ann on January 20, 2015
  65. Math7

    poul has 124.8m of encing to build a rectangular pen. He wants the pen to have the largest possible area. Calculate the length and width of the pen to one decimal place. I don't get it at all

    asked by Komal on January 10, 2011
  66. math

    A sphere of radius 7 m is circumscribed about a regular triangular prism. If the base edge of the prism is 1 m, find the volume of the prism (in m3). Round off your answer to four decimal places.

    asked by James on December 5, 2016
  67. Physics

    starting from ypur house, run 2oom east at an average speed of 4m/s, then turn around and run 280m west at an average spped of 7m/s to a post. 1) calculate Average velocity from house to post

    asked by carak on July 24, 2012
  68. physics

    Two blocks are pushed along a horizontal frictionless surface by a force of 20 newtons to the right. The force acts on the 3 kg block, which in turn pushes the 2kg block sitting next to it. The force that the 2-kilogram block exerts on the 3-kilogram block

    asked by Hannah on January 20, 2008
  69. Physics

    A shopper pushes a cart 50 m south down one aisle and then turns 90.0° west and moves 19 m. He then makes another 90.0° turn and moves 13 m. (a) What is the largest possible displacement of the shopper? (b) What is the smallest possible displacement of

    asked by Bob on September 4, 2012
  70. math

    Compute a 95% confidence interval for the difference in mean days of overall symptoms for the placebo and zinc lozenge treatments. Use the unpooled standard error and use the smaller of n1 - 1 and n2 - 1 as a conservative estimate of degrees of freedom.

    asked by Anonymous on November 7, 2010
  71. math

    The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 4 sin(πt) + 2 cos(πt), where t is measured in seconds. (Round your answers to two decimal places.) (a) Find the average

    asked by Anonymous on September 14, 2018
  72. statistics

    Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy Express, The Fudge Company, Karmel Corn, and Rocky

    asked by noell on November 5, 2012
  73. Business maths

    calculate the amount that will be accumulated after 20 years if $1600 is invested at the beginning of every six months at 13.5% compounded semi annually. Do not round intermediate calculations, just round the final answer to 2 decimal places

    asked by aiman on November 3, 2014
  74. Math

    The 1989 World Series San Francisco quake was initially reported to have magnitude 7.0, but later this was revised to 7.1. How much energy released corresponds to this increase in magnitude? (Round your answer to two decimal places.)

    asked by Christina on January 30, 2013
  75. Precalculus

    The exponential function f(x)=6(4)^2x+2 can be written in the standard form f(x)=Abx. Find the values of A and b. Give exact values, not decimal approximations. I don't know how to do with this problem. I try to graph and use points but the answer is wrong

    asked by Hai on January 17, 2016
  76. Pre calc

    Vector A has magnitude 23 units and direction, counterclockwise from east, of 5.8 degrees. What is the value of its x component to 1 decimal place? Its y component? This problem seems easy enough but I keep getting the wrong answer using the law of sines.

    asked by Me on July 30, 2010
  77. math

    5. A group of children are playing baseball in a small field. Their baseball diamond is a square with sides 14.1 m. When throwing the ball from home plate to second base how far must it go? Round your answer to one decimal place.

    asked by Panzy on November 9, 2014
  78. Math

    Thomas says that 35/1000 can be written as 0.35 is he correct? If not justify your reasoning and give the CORRECT decimal equivalent Bonus: write 682,027,103,391.045 in word form

    asked by BensyDrowny on September 18, 2018
  79. MATH - HELP ME PLEASE!!!!

    The front of an A-frame cottage has the shape of an isosceles triangle. It stands 30 feet high and is 20 feet wide at its base. What is the angle of elevation of its roof? (Round your answer to two decimal places.)

    asked by Anonymous on February 12, 2019
  80. math calculus

    The concentration C (in milligrams per milliliter) of a drug in a patient's bloodstream t hours after injection into muscle tissue is modeled by C = 3t/26 + t^3 Use differentials to approximate the change in the concentration when t changes from t = 1 to t

    asked by justin on May 4, 2013
  81. math

    I am getting difficulties by doin this homework.plzzzz can u hel pme;Solve this simultaneous equation;1/3(x+2)-1/4(y-1)=1,5X=4Y(B)SOLVE TO 2 DECIMAL PLACES'x-15/x=12. The second number am not sure of my calcalations;The point (x,y)is transformed by the

    asked by nellyna on August 23, 2007
  82. Math

    minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence. (a) 1 ounce of Tostitos provides (

    asked by nita on October 23, 2008
  83. math

    the land area of a country is about 5.0million square miles, and the population is about 700 million people.what is the average population density? simplfy answer and round to one decimal place as needed

    asked by verkesia on July 3, 2012
  84. calculus 1

    Use Newton's method to find all solutions of the equation correct to six decimal places. (Enter your answers as a comma-separated list.) 6 cos(x) = x + 1 can somebody explain to me step by step on how to solve this problem?

    asked by john on November 7, 2017
  85. Algebra

    Totally confused! Got 5 more of these to do and need some guidence please. Let f(x) = e^x–2 + 3. (a) Describe in words how the graph of f can be obtained from the graph of y = e^x (b) What is the domain of f? (c) What is the range of f? (d) What is the

    asked by Audrey on July 28, 2009
  86. math calculus

    The concentration C (in milligrams per milliliter) of a drug in a patient's bloodstream t hours after injection into muscle tissue is modeled by C = 3t/26 + t^3 Use differentials to approximate the change in the concentration when t changes from t = 1 to t

    asked by akash on May 4, 2013
  87. Business Dynamics

    Calculate the single risk premium (to 2 decimal places) to be charged today on an insurance product that pays regular claims of $500 in 1,2,3,...,25 years from today. Use an interest rate of 4% per annum.

    asked by Madison on December 7, 2016
  88. Math

    A 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence. 1/2 cup of Campbells new england clam chowder provided 6% of the MDV of iron/

    asked by Kim on March 6, 2008
  89. jjj

    . If your HIM department has 100,000 active medical records and you received 5,352 requests for records within a six-month period, what is the request rate for the past six months? Round to two decimal points.

    asked by Anonymous on May 7, 2015
  90. maths

    Hi, could someone please tell me how I would go about working these out: (the answer must be in the form a(sqroot)b where a and b are integers and b is as small as possible.) 1) Simplify (sqroot)500 2) Simplify (sqroot)50 x (sqroot)60 Also.. Simplify the

    asked by em on February 23, 2007
  91. Statistics

    In a certain city, there are 10,000 persons age 18 to 24. A simple random sample of 500 such persons is drawn, of whom 200 turn out to be currently enrolled in college. Find a 90% con¯dence interval for the percentage of persons age 18 to 24 in the city

    asked by Teddy on May 15, 2011
  92. physics

    A car is rounding a circular curve of radius r on a banked turn. As the drawing indicates, there are two forces acting on the car, its weight mg and the normal force FN exerted on it by the road. Which force, or force component, provides the centripetal

    asked by sally on June 1, 2014
  93. Math

    Jane grows several varieties of plants in a rectangular-shaped garden. She uses fencing to divide the garden into 16 squares that are each 1 m by 1 m. She also puts fencing around the perimeter of the garden. What should the dimensions of the garden be so

    asked by Anonymous on November 1, 2014
  94. Math

    Not counting the "turn around" , a helicopter carrying passengers between an airport and the roof of a downtown skycraper 20 miles away can make the round trip in 15 minutes. The helicopter flies 2 miles away with the wind when the time it flies 1 mile

    asked by Raquel on November 28, 2016
  95. physics

    A test rocket is launched by accelerating it along a 200.0-{\rm m} incline at 2.24{\rm m/s^2} starting from rest at point A (the figure (Figure 1) .) The incline rises at 35.0 ^\circ above the horizontal, and at the instant the rocket leaves it, its

    asked by Anonymous on September 15, 2012
  96. L.A.Help!!!!!!

    What is the authors main purpose in "Why Leaves Turn Color in the Fall"? A. She wants to persuade readers to stop pollution. B. She wants to inform readers of scientific facts about autumn leaves. C. She wants to explain the origin of macabre fall

    asked by blue on November 14, 2014
  97. Chemistry Honors

    I have to design a gadget that will either: light a match, pop a balloon, cause something to change color, lift a 500gm object at least 5cm, Blow out a candle, and/or turn on a light bulb. This experiment can be done by either using baking soda and vinegar

    asked by Kearse on September 16, 2008
  98. Physics

    A cubic meter of some material has a mass of 6400 kg. The block of material is lowered into a lake by a strong cable until the block is completely submerged. Draw a free-body diagram for the block. (Do this on paper. Your instructor may ask you to turn in

    asked by Tyler on March 31, 2014
  99. Chem Help Please!!!

    Experiment Design You are asked to separate a mixture of toluene and cyclohexane. Assume that they do not form an azeotropic mixture. Design an experiment to do this. You must provide the following information. a) A diagram of the equipment you will be. b)

    asked by Kim on September 3, 2014
  100. Trig verifying identities

    I am having trouble with this problem. sec^2(pi/2-x)-1= cot ^2x I got : By cofunction identity sec(90 degrees - x) = csc x secx csc-1 = cot^2x Then split sec x and csc-1 into two fractions and multiplied both numerator and denominators by csc and got: sec

    asked by Hutch on March 9, 2015