1. inverse function question

    Hey, I'm having trouble fully understanding absolute value graphs and I've been asked find the largest value of a so that f^-1 exists for the function: f: (-efinity,a) --> R where f(x)= logel2x-1l *note: i have used 'l' to represent the straight line

    asked by elle on November 8, 2007
  2. Maths

    Let S be a set of 31 equally spaced points on a circle centered at O, and consider a uniformly random pair of distinct points A and B (A,B∈S). The probability that the perpendicular bisectors of OA and OB intersect strictly inside the circle can be

    asked by Someone need help~ on May 26, 2013
  3. physics

    A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine

    asked by Anonymous on October 14, 2017
  4. math

    Let S be a set of 31 equally spaced points on a circle centered at O, and consider a uniformly random pair of distinct points A and B (A,B∈S). The probability that the perpendicular bisectors of OA and OB intersect strictly inside the circle can be

    asked by Mathslover on May 27, 2013
  5. Physics

    A constant torque of 22.9 N·m is applied to a grindstone whose moment of inertia is 0.168 kg·m2. Using energy principles, and neglecting friction, find the angular speed after the grindstone has made 17.1 rev, assuming it started from rest. Answer in

    asked by dallas on April 2, 2013
  6. physics ap

    we'l find the time, t, for the ball to fall from the tabletop to the floor. use the equation Δy=viΔt+at^2/2. Take the vi to be zero and a to be 9.81 ±.02 m/s^2. you must first solve this equation for t. Δy=.922m what am i suppose to do with the

    asked by Anthony on February 4, 2017
  7. physics

    TWo identical l-5.0-kg balls, Figure P5.85 each 25.0 cm in diameter, are suspended by two 35.0-cm wires (Fig. P5.85). The entire apparatus is supported by a single 18.0-cm wire, and the surfaces oi the balls are perf'ectly smooth. (a) Find the tension in

    asked by Mon on March 30, 2017
  8. Trig

    I need help with these kind of problems. We are dealing with word problems and/or pictures that are solved by the Law of Sin or Cosine. If any one kows a wonderful web site that can help with these, I would greatly appreciate it. A parollelogram has side

    asked by Jennifer on November 9, 2009
  9. Math

    An aircraft which is maintaining a constant altitude of 1000 meters is travelling directly away from an observer. At a particular instant the sngle of elevation is 52 degrees and 12 seconds later the angle of elevation is 16 degrees. Find the distance

    asked by Haiano on June 2, 2014
  10. chemistry

    the percentages of carbon,hydrogen and oxygen in vitamin c were determined by burning a sample weighing 2.00mg,the masses of carbondioxide and water formed are 3.00mg and 0.81mg respectively.from these information,find the percentage of each element and

    asked by yankoua on October 28, 2009
  11. calculus

    Find the dimensions of the right circular cylinder of greatest volume which can be inscribe in a right circular cone with radius of 5 inches and a hieght of 12 inches(hint:use similar triangle property).also draw a label diagram....plz answer its too

    asked by daan on November 7, 2010
  12. Social

    What was the bonus army, why were they protesting and what happened to them? i cant find this anywhere soooo plez helppppp thanks

    asked by Joe on March 22, 2007
  13. Social Studies

    How might America be different if the Erie Canal had not been built? I think America might be different if it hadn’t been built because New York would not have become our financial capital. The struggle to find cost effective ways of shipping bulk goods

    asked by Anonymous on May 15, 2014
  14. geometry

    Miguel looks out from the crown of the Statue of Liberty approximately 250 ft above ground. He sights a ship coming into New York harbor and measures the angle of depression as 18 degrees. Find the distance from the base of the statue to the ship to the

    asked by kaelan on May 4, 2012
  15. Math

    500$ is invested at 8.5% compounded annually. Find how long it will take until the fund grows to $800 The function g(x)= 23(1-.06)^x gives the Celsius temperature in x minutes after a large quantity of ice has been added to a bowl of water. When will the

    asked by kaylarae on April 5, 2010
  16. HUM 130

    I can not fine these words like in Hindu terms. Karma Reincarnation I did this one as far as I define it. Yoga Guru Chakras I have never heard of the words I havent defined yet. What is your personal understanding of each of these terms? What differences

    asked by dawn on November 27, 2007
  17. physics

    Three charges are fixed in the x−y plane as follows: 1.5nC at the origin (0, 0); 2.6nC at (0.65m , 0); –1.8nC nC at (0, 1.50m ). Find the force acting on the charge at the origin. Express your answers using two significant figures. Enter the x and y

    asked by James on January 27, 2014
  18. math

    Question Part Points Submissions Used Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.)

    asked by joe on October 17, 2012
  19. math

    A farmer has 110 metres of fencing to fence off a rectangular area. Part of one side is a wall of length 15m. Find the dimensions of the field that give the maximum area. Answers: length and width = 31,25m Thank you so much for a huge help.

    asked by Lucas on October 22, 2013
  20. algebra

    a local grocery store has plans to construct a rectangular parking lot that is bordered on one side by a highway. there are 1280 feet of fencing avaliable to enclose the other three sides. find the dimensions that will maximize the area of the parking lot.

    asked by Anonymous on November 30, 2010
  21. Biology

    Evolution by artificial selection is a common way by which people breed plants and animals to have characteristics that we find desirable. Imagine that you are working in a lab where scientists are trying to breed a strain of apple that has much higher

    asked by Anonymous on October 4, 2015
  22. MATHS

    Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale. triangle has sides 7, Y and X and 45 degree angle can someone show me how to do this? im

    asked by Corie on February 13, 2013
  23. Math

    Erica has scores:131, 120, and 140, each out of 150 points, on her algebra tests. Use an inequality to find the score she must make on the final exam to pass the course with an average of 80 percent or higher, given that the final is worth 200 points.

    asked by Julian on September 11, 2013
  24. physics

    A shot-putter moves his arm and the 7.0 kg shot through a distance of 1 meters iving the shot a velocity of 10 m/s from rest. Find the average force exerted on the shot during this time how do you solve this problem. Is this question related to Kinetic

    asked by Omari on March 31, 2010
  25. HTT / 230 please help

    i need help i can not understand this Question i don't know where to find the answer i have been looking for hours please some one help me ! Question is my is in hospitality finances class Explain why depreciation expense should be added back when

    asked by Beckylynn on December 5, 2013
  26. Math

    The Basketball Birthday Batter Package at a Minor league ballpark costs $192. The Package includes tickets, drinks, and cake for A group of 16 children. Write an equation To find the cost per child. 16c = $192

    asked by NEED HELP ASAP on October 20, 2014
  27. Algebra

    The Basketball Birthday Batter Package at a Minor league ballpark costs $192. The Package includes tickets, drinks, and cake for A group of 16 children. Write an equation To find the cost per child. 16c = $192

    asked by Mike on October 20, 2014
  28. physics

    A mass of 3.25 kg is attached to the end of a spring that is stretched 20 cm by a force of 14 N. It is set in motion with an initial position x_0 = 0 and initial velocity (in m/s) v_0 = -11. Find the amplitude, period, and frequency of the resulting

    asked by RAj on October 17, 2014
  29. uv,,math

    find the distance between the cities,,assume that thee earth is a sphere radius of 4000 miles at that cities are on same longitude, one city is due north of the order,,,San Francisco California has 37 degree 47'36" while Seattle,Washington 47 degree 37'18"

    asked by glenn on September 14, 2016
  30. Physics...help!

    A sled slides along a horizontal surface on which the coefficient of kinetic friction is 0.30. Its velocity at point A is 7.6 m/s and at point B is 4.0 m/s. Use the impulse-momentum theorem to find how long (in s) the sled takes to travel from A to B.

    asked by Me on October 26, 2011
  31. banking

    Your bank statement has arrived and shows an ending balance of $972.25. After reconciling the checks and deposits that have cleared, you find you have check #1234 for $15.00, #1235 for $9.23, and #1236 for $22.50 and two deposits of $123.56 and $156.78 as

    asked by pj on August 2, 2014
  32. HUM 130

    I can not fine these words like in Hindu terms. Karma Reincarnation I did this one as far as I define it. Yoga Guru Chakras I have never heard of the words I havent defined yet. What is your personal understanding of each of these terms? What differences

    asked by dawn on November 27, 2007
  33. Maths

    Let S be a set of 31 equally spaced points on a circle centered at O, and consider a uniformly random pair of distinct points A and B (A,B∈S). The probability that the perpendicular bisectors of OA and OB intersect strictly inside the circle can be

    asked by ABCD on May 29, 2013
  34. physics

    A 5kg object placed on a frictionless, horizontal table connected to a string that passes over a pulley and then is fastened to a hanging 9kg object. Draw a free body diagram of both the objects. Find the acceleration of the two objects and the tension in

    asked by Chansa on May 4, 2016
  35. goegraphy

    Are there any online Nystrom World Atlas. I forgot may book at school and can't do my work without it. Very few textbooks are online; the few that are require a username and password, usually provided by your teacher. Here's an example:

    asked by Alana on August 31, 2006
  36. math

    Justin recently drove to visit his parents who live 96 miles away. On his way there his average speed was 20 miles per hour faster than on his way home (he ran into some bad weather). If Justin spent a total of 4 hours driving, find the two rates.

    asked by crystal on July 26, 2019
  37. math

    The square base of the Great Pyramid of Khufu has a length of approximately 1.476 * 10^3 feet. Its height is about 2.17*10^2 feet. Find the approximate volume of the pyramid. Write your answer in scientific notation. Round the coefficient to the nearest

    asked by scientific notation plz help on October 27, 2016
  38. english

    This is for Chrestomanci readers :-) I'm writing an essay on possibilities, and I remember that in Witch Week, there is a passage where Chrestomanci describes other worlds notably the one in which the French defeated the British, and what that world was

    asked by cleo on May 2, 2008
  39. physics

    Find the vector components along the directions noted in parentheses. a. a car displaced 45degrees north of east by 10.0 km (north east) b. a duck accelerating away from a hunter at 2.0meter per second squared at an angle of 35degrees to the ground

    asked by i love polka on October 4, 2008
  40. social studies

    There was a crossword puzzle in issue 24 of the N.C weekly reader...8 across and neither my child nor myself could find the answer, she answered all of the rest of the puzzle words, but this one stumped her and it did me as well, the question was, "N.C to

    asked by Lee on May 15, 2017
  41. social studies

    please check my answer: why did african americans go from the rural south to northern cities starting in the late 1800s? - so they could be around other races and cultures - to change identities - to escape the discrimination and to find better jobs ** -

    asked by ramen on March 14, 2017
  42. Chemistry

    a 6.0 mole sample of Ca3(PO4)2 and a 12.0 mole sample of SiO2 react in an evacuated vessel. after one of the reactants is fully consumed, how much of the gas is created? How exactly would you solve this problem? Would you have to find the molar mass of

    asked by Allison on November 18, 2015
  43. math

    topic tree diagram. a box contain 6red and 4blue,5white balls.there balls are the bag one after the other without replacement find the prob of obtaining 1 first the same colour 2 first blue 2nd red,than white. 3. 1st red. 4different colours

    asked by Tebiowei on June 16, 2016
  44. probability

    Susan has a bag of sweets containing 7 chocolates and 5 toffees. Ahmad has a bag of sweets containing 3 chocolates, 4 toffees and 2 boiled sweets. A sweet is taken at random from Susan’s bag and put in Ahmad’s bag. A sweet is then taken at random from

    asked by Ataul on October 25, 2015
  45. Please proofread my essay

    Weather Gone Wild -During this semester, I was to keep track of a current event. I chose researching extreme weather nation wide, but I was most interested in discovering if there was any sort of extreme weather happening around the United States, as well

    asked by shining_star007 on November 19, 2006
  46. Math

    Mulitple Choice Find the slope. A coordinate graph shows a line through 2 points. One point has coordinates negative 3 comma 3. The other point has coordinates 1 comma negative 5. A. 2** B. –one-half C. –2 D. one-half Use the graph below to answer the

    asked by Kadance on February 22, 2019
  47. Physics

    An airplane is flying in a horizontal circle at a speed of 104 m/s. The 88.0 kg pilot does not want the centripetal acceleration to exceed 6.15 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

    asked by Dave on February 8, 2013
  48. ethics and moraling reasoning

    According to Thomas Hill’s account of environmental ethics, a person might show a lack of virtue when they: (Points : 1) fail to realize that human needs and interests are worthless and unimportant. fail find any aesthetic value in nature. fail to

    asked by Christopher on February 10, 2016
  49. physics

    Jordan throws a golfball straight up from the top of a building 50 meters high. The initial speed of the golfball is 20 m/s and it just misses the edge of the roof when it eventually falls. Neglecting air resistance, find the velocity of the golfball just

    asked by Ellie on October 12, 2014
  50. calc 1

    If a ball is thrown in the air with a velocity 46 ft/s, its height in feet t seconds later is given by y = 46t − 16t2. (a) Find the average velocity for the time period beginning when t = 2 and lasting 0.5 second 0.1second 0.05 second 0.01 second i tried

    asked by feather on January 23, 2016
  51. Physics

    Can someone help me with the formula of horsepower? In my lesson, it shows me how power = ft*lb/s... but then it kinda stops and doesn't tell me how to find hp from this. I tried searching online but I'm still confused. There's something about watts and

    asked by Max on February 17, 2018
  52. biology -urgent...highly confused

    How does pH affect the activity of catalase? Consider both high and low pH, and explain your observations by discussing the effect of pH on protein structure. I cannot find anywhere in my notes, or text book, or even on the internet how pH affects

    asked by Leo on February 27, 2008
  53. English Help Please

    Which line of dialogue by Anne in The Diary of Anne Frank, Act I reveals that Anne is struggling to find herself? A. "I knew it was the last night in my own bed, and yet I slept soundly." B. "I'll take the room in the afternoons." C."You are the most

    asked by Anonymous on March 9, 2015
  54. Lang Arts

    in all together now Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. in 1 paragraph cite 1 example of each kind of appeal. then explain weather you find Jordans appeals convincing supporting

    asked by Help Plz on December 31, 2015
  55. Math

    In "All Together Now," Jordan uses appeals to emotion and appeals to reason to try to persuade their readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then, explain whether you find Jordans appeals

    asked by Mister Max on April 18, 2018
  56. music

    what is an element in music There are a number of musical elements: rhythm, melody, dynamics, harmony, tempo, timbre, articulation, texture and form. You can find definitions for these by clicking on MUSIC under SUBJECTS on the left side of your screen,

    asked by sasha on September 26, 2006
  57. Math

    The box-and-whisker plot below shows the numbers of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School. Two box and whisker plots are shown above a number line. The number line is scaled from 2 to 38 by

    asked by Gianna on May 4, 2017
  58. math

    The box-and-whisker plot below shows the numbers of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School. Two box and whisker plots are shown above a number line. The number line is scaled from 2 to 38 by

    asked by ROBLOX GIRL on March 8, 2019
  59. Math

    The box-and-whisker plot below shows the numbers of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School. Two box and whisker plots are shown above a number line. The number line is scaled from 2 to 38 by

    asked by Anon on April 19, 2017
  60. math

    The box-and-whisker plot below shows the numbers of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School. Two box and whisker plots are shown above a number line. The number line is scaled from 2 to 38 by

    asked by help on March 11, 2019
  61. math

    A drawer contains exactly 5 red socks, 8 blue socks, 10 while socks, 12 green socks , and 7 yellow socks. Find the least number of socks to be chosen which will guarantee that there will be at least seven socks of the same color.

    asked by sally on November 30, 2012
  62. Precalculus(NEED HELP ASAP PLEASE!!)

    cot(theta)= 3 pi < theta < 3pi/2 Find: sin(theta)= -1 ? cos(theta)= -3 ? tan(theta)= 1/3 ? sec(theta)= -1/3 ? csc(theta)= -1 ? That's what I came up with, but they are not correct, PLEASE help me where I went wrong!!

    asked by jh on March 28, 2010
  63. math

    find the angle that is coterminal to 525 degrees and lies between 0 degrees and 360 degrees? 165 degrees 255 degrees 195 degrees 345 degrees

    asked by Brittany on June 24, 2010
  64. trig

    If sin theta is equal to 5/13 and theta is an angle in quadrant II find the value of cos theta, sec theta, tan theta, csc theta, cot theta.

    asked by Julise Alliance on February 28, 2013
  65. English

    Thank you for your help in many ways. Would you like to check the questions and answers? I need your correction. Thank you. 7. What is the capital of Canada? - It¡¯s Ottawa. 8. What animal live in Canada? - Many beavers live in Canada. 9. What do people

    asked by rfvv on June 1, 2015
  66. probability

    Consider n independent rolls of a k-sided fair die with k≥2: the sides of the die are labelled 1,2,…,k and each side has probability 1/k of facing up after a roll. Let the random variable Xi denote the number of rolls that result in side i facing up.

    asked by JuanPro on March 28, 2014
  67. College

    Shantisha Brown SC543-01 Article Critique 1 Mindes, Gayle; Murphy, Kathleen Torina (1982). The Importance of Play and Games in the Middle School Program for Emotionally Disturbed Young Adolescents. Journal of Mental Health Counseling, 31, 131-140. In this

    asked by Shantisha on June 12, 2011
  68. Math

    1. What is 0.32 as a fraction in simplest form My answer was 32/100 2. Find the sum of 2 1/2 and 2/5 My answer was 2 3/7 3. Which of the following makes the statement true 1/5^0=? My answer was 1 4. The area of a certain state is 840,000 Square miles what

    asked by Nichole on September 21, 2018
  69. math, economics, game theory

    Two people have 10 dollars to divide between themselves. they use the following procedure. each person names a number of dollars (nonnegative integer), at most equal to 10. IF the sum of the amounts that the people name exceeds 10 and the amounts named are

    asked by eric on September 10, 2007
  70. physics

    Find the Magnitude of the force exerted by each cable to support the 625 N punching bag. One cable is connected to the ceiling with an angle of 37 degrees and the other cable is connected perpendicular to the side wall (Horizontal). HELPP

    asked by kacey on August 9, 2012
  71. math

    A ski resort has 3 chair lifts, each with access to 6 ski trails. Explain how you can find the number of possible outcomes when choosing a chair lift and a ski trail without making a list, a tree diagram, or table.

    asked by Anonymous on March 9, 2016
  72. Statistics

    Dear Lee, Please confirm these answers to this question. your medical terminology instructor listed the following grades for the class out of a 75 point test: 33,34,43,45,45,54,55,59,60,62,64,66,67,68,67,68,68,69,70,70 a.find the 90th percentile b. your

    asked by Ben on November 3, 2013
  73. PHYSICS

    Two horizontal forces, F1 and F2, are acting on a box, but only F1 is shown in the drawing. F2 can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +6.2 N

    asked by Tiffany on February 2, 2011
  74. physics

    TWO BLOCKS a AND b ARE CONNECTED BY A HEAVY ROPE OF MASS 2kg THE MASSES OF a AND b ARE 10 AND 5kg RESPECTIVELY.IF AN UPWARD FORCE OF 200N IS APPLIED TO THE TOP ROPE A:FIND THE ACCELERATION OF THE SYSTEM B:WHAT IS THE TENTION AT POINT P1 AND P2 ON THE HEAVY

    asked by Fonde on January 13, 2012
  75. Physics

    A ball is thrown horizontally from the top of a building 45.2 m high. The ball strikes the ground at a point 78.9 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 . Find the time the ball is in motion, initial velocity, and x and y

    asked by Bob on November 10, 2013
  76. Algebra

    A word processing station was purchased by a company for $10,000. After 4 years it is estimated that the value of the station will be $4000. If the value in dollars V and the time the station has been in use t are related by a linear equation, find the

    asked by Jesus T. on September 12, 2007
  77. math

    Mr.Jacobs budgeted $1,200 for tiles.His sketch of the floor requires him to use 38 white tiles.Each white tile costs $12.Write and solve an inequality to find the maximum amount he can spend on brown tiles.

    asked by Pedro on March 9, 2016
  78. physics

    Find the Magnitude of the force exerted by each cable to support the 625 N punching bag. One cable is connected to the ceiling with an angle of 37 degrees and the other cable is connected perpendicular to the side wall (Horizontal). HELPP

    asked by kacey on August 9, 2012
  79. Physics

    A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to

    asked by Jessica on February 20, 2012
  80. Math

    You come home after dark, and porch light is out. You cannot tell which key opens the door.. you randomly try the 5 keys on your ring, 2 keys open your door. Draw a tree diagram for the experiment & Find the probability of opening the door on the first or

    asked by Angie on November 24, 2012
  81. physics

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

    asked by Anonymous on January 17, 2011
  82. physics

    A car of mass 1410 kg traveling at 26 m/s is at the foot of a hill that rises 115 m in 4 km. At the top of the hill, the speed of the car is 14 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.

    asked by Rodrigo on October 4, 2012
  83. physics

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

    asked by Anonymous on January 17, 2011
  84. Business Math

    3.) The demand equation for a certain product is q=500-40p+p^2 where p is the price per unit (in dollars) and q is the quantity of units demanded (in thousands). Find the point elasticity of demand when p = 15. If this price of 15 is increased by ½%,

    asked by pypski on December 14, 2016
  85. math - surface area and volume

    A cylindrical bucket with base 15 cm with water upto a height of 20 cm a heavy iron spherical ball of radius 9cm is drop into the bucket to submerge completely in the water. Find the incrrase in the level of water.

    asked by s.yashraj on January 31, 2016
  86. Geometry

    I find these questions so difficult! I've been trying to solve them but I just can't. As they are diagrams they are hard to express in words, so the questions are the links below: 1) tinypic(.)com/r/25z7486/7 2) tinypic(.)com/r/4uhrg3/7 3)

    asked by Ray on March 8, 2011
  87. Physics

    A ball hanging from a twisted string is released from rest, and spins around in a circle (reversing direction periodically). The angular velocity of the ball is given by: 𝜔(𝑡)=(16 𝑟𝑎𝑑/𝑠) sin[(𝜋/5 𝑟𝑎𝑑/𝑠)𝑡] Find the number

    asked by A on October 21, 2016
  88. tangential acceleration??

    An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. What is the tangential acceleration of a point 9.50 cm from the axis of rotation? Your answer should be given in m/sec squared. Tangential acceleration = angular acceleration * radius How

    asked by anonymous on September 13, 2017
  89. physics rewrite

    starting from rest, a ball rolls, down an incline at a constant acceleration of 2meters per second squared what is the velocity of the ball after 8.5 seconds? how far does the ball roll in 10 seconds? any one can help pleasse im stuck show n detail how to

    asked by ashley on January 13, 2008
  90. Physics

    A car of mass 1490 kg traveling at 22 m/s is at the foot of a hill that rises 115 m in 3.2 km. At the top of the hill, the speed of the car is 12 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.

    asked by Jennifer on March 5, 2015
  91. Mathematics

    On a market day Mrs.lana walks to the market from her home at steady speed. This journey normally takes her 2 hours to complete. She finds, however that by increasing her speed in km/hr.she can save 20 minutes. Find her usual speed in km/hr?

    asked by CEO on July 6, 2019
  92. math

    ) A chord AB of length 13cm is drawn in a circle centre O at a distance of 5cm from O. Find the radius of the circle. Stop at 1 d.p.(b) TA and TB are tangents to a circle centre O. TOC is a straight line and

    asked by bliss on September 8, 2016
  93. Calculus - Volume by Integration

    Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the y-axis: y=(x-2)^3-2, x=0, y=25 (a)solve by either the disk or washer method (b)solve by the shell method (c)state which method is easiest to

    asked by Nicole on November 24, 2013
  94. Math

    Maria leaves her house to meet jane at the zoo. Jane lives further away than Maria and drives 8mph fatser than Maria. Their combined distance is 84 miles. If they both drive 45 minutes, find their average speeds.

    asked by Barbara on February 19, 2013
  95. Add math

    George has planted several types of vegetables for his own consumption on an empty rectangular plot of land beside his house. He wants to fence the land as a dimension of (12x)m and (4-x)m. Find the length, in m of the fence he has to buy when the area of

    asked by Michele on January 2, 2017
  96. Physics

    A rifle aimed horizontally at a target fired a bullet which lands 2 cm below the aim point. If the rifle was 25 m away find a) the flight time and b) the velocity with which the bullet left the rifle. I would first have to convert the 2 cm into m but what

    asked by nix on November 2, 2006
  97. physics

    2. A car of mass 1540 kg traveling at 28 m/s is at the foot of a hill that rises 125 m in 3.6 km. At the top of the hill, the speed of the car is 8 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.

    asked by rizzo on October 5, 2010
  98. ap physics

    The acceleration due to gravity on the moon has a magnitude of 1.62 m/s. deal with a placekicker kicking a football. Assume that the ball is kicked on the moon instead of on the earth. Find (a) the maximum height H and (b) the range that the ball would

    asked by Anonymous on November 8, 2015
  99. trig

    The terminal side of θ lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of θ by finding a point on the line. Line: (55/48)x Quadrant:III sin(θ)= cos(θ)= tan(θ)= csc(θ)= sec(θ)= cot(θ)=

    asked by andrea on January 31, 2012
  100. Calculus II

    A cylindrical tank of r=5 and h=9 is 2/3 filled with a liquid with density [rho]lb/ft^3. Find the Work required to pump liquid over the rim. The main thing I need help with is finding the y-value at which the tank is 2/3 full. Assume the bottom point of

    asked by RuggedChild on February 24, 2009

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