1. Math

    Assume that the average annual salary for a worker in the United States is $30,500 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $6,250. Find the following: (A) What percentage of Americans earn

    asked by Michael on October 28, 2012
  2. Trigonometry

    A climber, working his way up a vertical cliff stops for a rest on the ledge. The ledge where he stopped is 12 meters wude. The angle of depression from the edge of the ledge to the bottom of the cliff is 72 degree and the angle of elevation to the top of

    asked by Tomina on December 10, 2011
  3. English, Language arts

    I have a project called "Time machine project" in my English class. It's literally a project that I have to search for any US region, state or city in past and compare to present. I also have to find short stories or poems about that. Do you have any

    asked by U on July 29, 2017
  4. physics

    An air condenser has an area of 100 cm^2 the plates being 4mm apart. It is connected in series with another condenser having plate area of 20cm^2 plates being separated by dielectric 0.1mm thick with E=2.5. If the potential difference across an condenser

    asked by vicky on April 12, 2016
  5. algebra 2

    Rosalyn works no more than 16 hours a week during the school year. she is paid $10 and hour for tutoring geometry students and $7 an hour for delivering pizzas for Pizza King. She wants to spend at least 6 hours but no more than 8 hours a week tutoring.

    asked by jeanne on October 14, 2010
  6. Physics

    a 9.50-g bullet. moving horizontally with an initial speed vi , embeds itself in a 1.45-kg pendulum bob that is initially at rest. The length of the pendulum is L=0.745m. After the collision, the pendulum swings to one side and comes to rest when it has

    asked by AfterLife on August 5, 2011
  7. Chemistry

    In the following reaction, first find how many oxygen molecules would be used to completely react with 230 grams of pentyl alcohol (C5H11OH)? Then, if exactly 1.505x10^21 carbon dioxide molecules were formed in this reaction, calculate the grams of water

    asked by Melissa on November 24, 2017
  8. Chemistry

    In the following reaction, first find how many oxygen molecules would be used to completely react with 230 grams of pentyl alcohol (C5H11OH)? Then, if exactly 1.505x10^21 carbon dioxide molecules were formed in this reaction, calculate the grams of water

    asked by Melissa on November 24, 2017
  9. science

    a 600 g pool ball moving at 2.0m/s hits a second pool of the same mass at rest. the first ball moves off at 1.5m/s at an angle of 30 degrees from the original direction. assume the surface of the pool table to b frictionless find the angle at which the

    asked by hope on April 7, 2016
  10. physics

    An air condenser has an area of 100 cm^2 the plates being 4mm apart. It is connected in series with another condenser having plate area of 20cm^2 plates being separated by dielectric 0.1mm thick with E=2.5. If the potential difference across an condenser

    asked by vicky on April 12, 2016
  11. Algebra

    The given graph represents the number of active servicemen in the region who are overweight. There were 3320 overweight servicemen in 1992, and 8310 overweight servicemen in 2002. Find the rate of change. The rate of change is ___? servicemen per year.

    asked by Student5 on February 8, 2014
  12. Geometry

    Find the value of x. There is two lines, they are not parallel. In between (connected) those two lines is a shape. A trapezoid by the looks of it. It is wide at the bottom and thin at the top. There are equations outside of the shape, so external angles.

    asked by SkatingDJ on March 16, 2016
  13. math

    Please show me how to solve: Hannah took a survey of 500 students at her school to find out whether they liked baseball or football. The results are shown in the Venn diagram. How many of the students surveyed like football? 28% liked baseball, 32% liked

    asked by Jane on November 19, 2011
  14. Chemistry (Dr.Bob222)

    The half-life of P-32 is 14 days. How long after a sample is delivered can a laboratory wait to use a sample in an experiment if they need at least 10 percent of the original radioactivity? I need help on how to set up this problem. What is the general

    asked by K on November 7, 2013
  15. Physics

    A 70 kg man just before contact with the ground has a speed of 5 m/s In a stiff-legged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the

    asked by Kevin on November 30, 2010
  16. physics

    A 120-V motor has mechanical power output of 3.00 hp. It is 94.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor. I got the same answers,17.5 A, whether I used round

    asked by blast on August 17, 2010
  17. Physics

    A 70 kg man just before contact with the ground has a speed of 5 m/s In a stiff-legged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the

    asked by Kevin on December 1, 2010
  18. math- 165 calculas

    An open box is to be made from a eighteen-inch by eighteen-inch square piece of material by cutting equal squares from the corners and turning up the sides (see figure). Find the volume of the largest box that can be made. figure ( a box and one side is

    asked by akash on October 6, 2015
  19. Chemistry

    In the following reaction, first find how many oxygen molecules would be used to completely react with 230 grams of pentyl alcohol (C5H11OH)? Then, if exactly 1.505x10^21 carbon dioxide molecules were formed in this reaction, calculate the grams of water

    asked by Melissa on November 24, 2017
  20. Physics

    For a piece of glass n(red)= 1.635 and n(blue)= 1.689. The respective wavelengths are 680nm (red) and 430nm (blue). Find the angle between these two colors of light in the glass if they were originally in a white light beam in air incident on the glass at

    asked by chi on March 24, 2012
  21. physics

    Only two forces act on an object (mass = 4.20 kg), as in the drawing. (F = 73.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object. magnitude m/s2 direction ° counterclockwise from the +x axis The angle from

    asked by Taylor on October 13, 2011
  22. Physics

    X-rays with an energy of 300 keV undergo Compton scattering from a target. If the scattered x-ray are directed at 30 degrees relative to the incident rays, find a)The Compton shift at this angle b) The energy of the scattered x-ray c)The energy of the

    asked by Jennifer on March 22, 2011
  23. Physics

    A 70 kg man just before contact with the ground has a speed of 5 m/s In a stiff-legged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the

    asked by Kevin on December 2, 2010
  24. Physics

    A 30.0 kg box is being pulled across a carpeted floor by a horizontal force of 230 N., against a friction force of 210 N. Calculate the acceleration of the box and find the x and y components of the acceleration of the box. Align the positive direction

    asked by Anne on March 26, 2012
  25. science

    a person standing on a road has to hold his umbrella at 60 degree vertical to keep the rain away he throws the umbrella and starts running at 20 m/s he finds that rain drops are falling in him vertically. find the speed of the rain drops with respect to

    asked by jo145578 on July 1, 2012
  26. math

    Assume that the average annual salary for a worker in the United States is $30,500 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $6,250. Find the following: (A) What percentage of Americans earn

    asked by Jen on October 25, 2012
  27. trig

    an observer at A looks due north and sees a meteor with an angle of elevation of 70 degrees. At the same instant, another observer 30 miles east of A seed the same meteor and approximates its position as N 50 degrees W but fails to note its angle of

    asked by olivia on January 11, 2015
  28. Motion Problems

    A satellite which travels around the earth has a power supply that provides power according to the formula: P =(17200)/(t + 100) where t is the number of days the satellite is aloft. Find the rate at which power is decreasing after 380 days. rate in

    asked by Brownie on January 29, 2013
  29. physics

    a projectile is thrown from the ground with an initial velocity of 20.0 m/s at an angle of 40.0 degrees above the horizontal. find the projectile's maximum height, the time required to reach its maximum height, its velocity at the top of the trajectory,

    asked by Anonymous on February 10, 2014
  30. Calculus

    A lemon tree nursery usually sells a certain breed after 4 years of growth and shaping.the growth rate is approximated by: dh/dt =2.4t+3 where t is time in years and h is the height in cm. suppose that seedlings are 10 cm tall when planted (at t=0) a) find

    asked by Anonymous on April 1, 2012
  31. preap physics

    A 15.4kg block is dragged over a rough horizontal surface by a constant force 191N acting at an angle of 25.3 degrees above the horizontal. The block is displaced 80.4m and the coefficient of kinetic friction is. 2 A) find the magnitude of the work done by

    asked by jay on January 11, 2012
  32. phsics

    A ball is rotating in a horizontal circle at the end of a string of length 3.8 m at an angular velocity of 8.5 rad/s. The string is gradually shortened to 3.3 m without any force being exerted in the direction of the ball’s motion. Find the new angular

    asked by owen on November 19, 2014
  33. Math

    The scale on a map is 1 in: 4 miles. Find the actual distance in miles for each length on the map. 1/ 2 in. Answer: d=8 2/ 7.2 in. Answer: d=288 3/ 3.5 in. Answer: d=140 4/ 11 in. Answer: 44 Write the ratio as a scale in simplest form. 3cm\15cm Answer: 1/5

    asked by Na on March 1, 2017
  34. Econ

    The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 55 gm. The process standard deviation is known to be 0.77 gm. A random sample of 49 candy bars yields a mean weight of 55.82 gm. Find the test

    asked by alex on April 22, 2014
  35. college physics

    A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 140 cm and makes an angle of 130° with the positive x axis. The resultant displacement has a magnitude of 144 cm and is directed at an angle of 30.0°

    asked by caitlin on September 28, 2010
  36. physics

    A bullet is fired horizontally with a velocity of 250 m/s from the top of a building 100m high. Find the Horizontal and vertical velocities of the bullet when it reaches the ground, the resultant velocity, the horizontal displacement, the net displacement,

    asked by ellah on January 9, 2012
  37. statistics

    The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 55 gm. The process standard deviation is known to be 0.77 gm. A random sample of 49 candy bars yields a mean weight of 55.82 gm. Find the test

    asked by Anonymous on April 22, 2014
  38. science

    A bullet is fired horizontally with a velocity of 250 m/s from the top of a building 100m high. Find the Horizontal and vertical velocities of the bullet when it reaches the ground, the resultant velocity, the horizontal displacement, the net displacement,

    asked by purplekish on November 10, 2013
  39. Physics

    A 1.50 kg snowball is fired from a cliff 13.0 m high with an initial velocity of 14.0 m/s, directed 41.0° above the horizontal. (a) Using energy techniques, rather than techniques of Chapter 4, find the speed of the snowball as it reaches the ground below

    asked by Matt on July 24, 2010
  40. math

    the simple interest received from investment is directly proportional to the amount of the investment. By investing $4000 in a municipal bond you obtain interest of $280 at the end of 1year. Find a mathematical model that gives the interest I at end of

    asked by Marybeth on June 3, 2014
  41. Physics

    A nail on a vertical wall is pulled by means of a chord attached to its head if the chord makes an angle of 60deg to the horizontal and it exact a force of 80N on the nail find the effective force which tends to pull the nail out of the wall and the force

    asked by Great on September 19, 2017
  42. Math 11

    I need help on this math problem. The width of a certain painting is 5cm less than twice the length. The length of the diagonal distance across the painting is 107cm. Find the length and width. Round your answer to 2 decimal places. How should I set up for

    asked by Need Help on January 12, 2012
  43. Physics

    A receiving antenna becomes misaligned by 30° to its original position. The power of the received signal in this new position is 12µW. Wavelength = 0.016 m I calculated the power received in the original position as 1.04 x 10^-5 W What I need to find out

    asked by Ramesh on November 16, 2018
  44. chemistry

    A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 152 cm and makes an angle of 125° with the positive x axis. The resultant displacement has a magnitude of 150 cm and is directed at an angle of 35.0°

    asked by tea on January 25, 2010
  45. Physics

    X-rays with an energy of 300 keV undergo Compton scattering from a target. If the scattered x-ray are directed at 30 degrees relative to the incident rays, find a)The Compton shift at this angle b) The energy of the scattered x-ray c)The energy of the

    asked by amy on March 18, 2011
  46. math- CAN SOMEONE PLEASE HELP

    find the two ordered pairs of this equation. y=5/3x+8 then give the slope and y intercept. I know the slope is rise over run and is the y intercept 8? This is the answer I got but I am still really confused how do I get my two ordered pairs this makes no

    asked by KiKi on March 28, 2010
  47. Physics

    A large horizontal circular platform (M=143.1 kg, r=3.01 m) rotates about a frictionless vertical axle. A student (m=75.3 kg) walks slowly from the rim of the platform toward the center. The angular velocity ω of the system is 2.10 rad/s when the student

    asked by Molly on February 11, 2014
  48. calculus

    A car leaves an intersection traveling east. Its position t sec later is given by x = t2 + t ft. At the same time, another car leaves the same intersection heading north, traveling y = t2 + 3t ft in t sec. Find the rate at which the distance between the

    asked by sal on October 19, 2011
  49. College Math

    Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing three red marbles, four green ones, five white ones, and one purple one. She grabs seven of them. Find the probability of the following event, expressing it as a

    asked by Anonymous on November 20, 2016
  50. Precalculus

    I know I posted this before,but I did not learn it your way .....instead I drew a picture and use the law of cosines....is there a way you can show me the work using law of cosines?? A plane flies 30 mi on a bearing of 200 degrees and then turns and flies

    asked by Anonymous on December 12, 2013
  51. Calculus

    A lemon tree nursery usually sells a certain breed after 4 years of growth and shaping.the growth rate is approximated by: dh/dt =2.4t+3 where t is time in years and h is the height in cm. suppose that seedlings are 10 cm tall when planted (at t=0) a) find

    asked by Anonymous on April 1, 2012
  52. Pre calculus

    Okay, I'm really fuzzy about my log and exponential chapter. For example, solving some exponential equation such as e^3x-7 x e^-2x=4e I assume I start this equation by taking the natural log of both sides, but how will I know just by looking at an equation

    asked by marcus on November 20, 2012
  53. Mathematics

    a cylindrical Jar of radius 12 centimetre contains orange juice to a depth of 20 centimetre child drops and orange into the zar and the level of the juice Rises by 6.75 centimetre what is the radius of the orange if it is of the shape of a complete spare

    asked by Nidhi on February 10, 2017
  54. Physics

    A 70 kg man just before contact with the ground has a speed of 5 m/s In a stiff-legged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the

    asked by Jessica on November 18, 2010
  55. Algebra

    Rose's garden is in the shape of a trapezoid. If the height of the trapezoid is 16m, one base is 20m, and the area is 224 m squared, find the length of the other base. The height dimension h is measure perpendicular to the to parallel "base" sides, a and

    asked by Judy on March 13, 2007
  56. Stats - Please help me

    A Bacteria has a doubling period of 8 days. If there are 2250 bacteria present now, how many will there be in 33 days? find the growth rate (Round this to 4 decimal places). Growth Rate___________. There will be _________ Bacteria. I came up with:.0668 for

    asked by Bobbie on March 13, 2015
  57. Math

    A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there

    asked by Steve on June 11, 2018
  58. Math

    A rectangular study area is to be enclosed by a fence and divided into two equal parts, with a fence running along the division parallel to one of the sides. if the total area is 384 ft^2, find the dimensions of the study area that will minimize the total

    asked by Sam on March 10, 2009
  59. Finte Math - Simplex Method

    Just a few questions to make sure I am understanding the simplex method. First you set up matrice, then you find the column with the largest negative number in bottom row. That is the column you will pivot. So then how do you determine which row is the

    asked by Robson on June 21, 2012
  60. precalc help

    Find the exact value without a calc 1. log base 3 of 8 times log base 8 of 9. I started by changing both bases to 10 but don't know what to do from there. 2. e ^ log base e^2^9. I hope that isnt confusing. My teacher said we are suppose to get the bases

    asked by Rebekah on November 21, 2012
  61. Physics

    Figure shows a circular wire loop of radius r carrying current i placed in a perpendicular magnetic field B. Suppose that the radius of cross section of the wire is a. Find the decrease in radius of loop when magnetic field is switched off if Young’s

    asked by Aaron on September 28, 2016
  62. math- Trigonometry

    If cos degree equals to 0.8641  What is Sin degree?  I have no idea how to find this.  Please help me. I got help from two people, but I'm not getting the answer and how they got the numbers either. Someone says: cos^2+sin^2=1 

    asked by Simran on November 5, 2016
  63. Trigonometry

    An airplane is headed southwest (bearing 225°) with an air speed of 550 miles per hour, with the wind blowing from the northwest (bearing 135°) at a speed of 110 miles per hour. Find the drift angle, ground speed, and the course of the airplane.

    asked by John on March 5, 2018
  64. Mathematics, Math

    During a period of acute shortage of raw materials, the prices of some manufactured goods were raised by 25%. After the shortage was over, prices were lowered by 15%. If the original price of an article was $56, find its price after the shortage was over.

    asked by Kaela on February 28, 2012
  65. Mathematics, Math

    During a period of acute shortage of raw materials, the prices of some manufactured goods were raised by 25%. After the shortage was over, prices were lowered by 15%. If the original price of an article was $56, find its price after the shortage was over.

    asked by Kaela on February 28, 2012
  66. Calculus

    A particle starts at the point (5,0) at t=0 and moves along the x-axis in such a way that at time t>0 its velocity v(t) is given by v(t)= t/(1+t^2). a). Determine the maximum velocity of the particle. Justify your answer. b). Determine the position of the

    asked by Rasheda on January 29, 2014
  67. classical mechanics

    A projectile is launched down ward from the top of inclined plane of angle alpha in the direction making an angle beta with the incline. assuming the projectile hits the incline, find the expression for the range and determine the maximum expression for

    asked by Henry on April 19, 2016
  68. Math

    A tree one hundred cubits high is distant from a well two hundred cubits; from this tree one monkey climbs dow the tree and goes to the well, but the other leaps in the air and descends by the hypotenuse from the high point of the leap, and both pass over

    asked by Lauren on July 15, 2012
  69. Physics please help!!

    High speed stroboscopic photographs show that the head of a 188 g golf club is traveling at 52.5 m/s just before it strikes a 45.5g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 44.0 m/s. Find the speed

    asked by Megan on February 14, 2011
  70. Geometry

    In my book there's a picture of an equalderal triangle. This is given information. Inside the triangle all three altitudes have been drawn to find the center point of gravity. The incircle is drawn. The circumcircle is drawn. Given that the radius of the

    asked by Geometry on May 15, 2008
  71. math

    I don't get how to put it in the the equation Interest=percent×rate×time This is the question The banded ribbon worm is a carnivorous aquatic worm. It measures about 2.5 ft. When expanded. Find the percent increase between the contracted and expanded

    asked by emma on October 21, 2014
  72. Chemistry

    Calculate the number of moles of carbon atoms present in 2.2 g of ethanol (C2H6O). For this question, I would just need to find the molar mass of carbon, right? Not the molar mass of all of ethanol? So it would just be 2.2 g/ 24.02 g/mol which would equal

    asked by Alex on September 13, 2015
  73. Physics

    A string of mass m=.1kg is stretched to where its length is L=20m. What is the tension force applied to the string if it takes a pulse 2 seconds to get from one end to the other? m=kg L=20m T=4s mass density =m/L = .1/20 = kg/m Tension =? I know

    asked by Andrea on February 6, 2008
  74. math

    Mrs. Sue Mrs. Sue!!!!!!!!! Pls help!!!! I am not good at this. Pls help me figure this out. And, PLs dont give a link. Thank You. P.s I dont even have an estimate. The radius of a cylinder is 3.5 ft. The height is 14 ft. Find the surface area and volume of

    asked by h..... on March 8, 2019
  75. Math

    Henry is a quality control inspector. He is watching the production line for Barb's Raisin Cookie. Henry will reject a cookie with less than 8 raisins. In the past, one out of every 100 cookies had less than 8 raisins. Find the probability that the first

    asked by Anonymous on April 5, 2013
  76. math

    The digits 2, 4, 6, 8 and 0 are used to make five-digit numbers with no digits repeated. What is the probability that a number chosen at random from these numbers has the property that the digits in the thousands place and ten's place are each larger than

    asked by Alex on December 11, 2018
  77. MATH PLEASEEEEE

    I have a question, if f(x)=x/2 and g(x)=3x+1 find: a) (f+g)(x) i know you go x/2+3x+1. but how do i solve that?? b) (f-g)(x) i know you go x/2-3x+1, how do i solve? c)(f*g)(x) how do i solve? (f/g)(x) how do i solve?? f(g(x)) how do i solve?? thanks for

    asked by Jamie Lynn on December 16, 2008
  78. Calculus

    Find F '(x) for F(x) = integral[x^3 to 1](cos(t^4)dt) a. cos(x^7) b. -cos(x^12) c. -3x^2cos(x^12) d. cos(1) - cos(x^12)

    asked by Jimmy on May 16, 2018
  79. Calculus I

    Find the derivative of f(x) = sin^2 (e^sin^2 x) I wonder if I'm right F'(x) = 2cos(e^sin^2 x) (sin^2 x e^sin^2 x -1)

    asked by Priscilla on March 21, 2012
  80. math

    angle 1 and angle 2 are supplementary angles. m angle 1 is 4y + 7 and m angle 2 is 9y + 4. Find m angle 2.

    asked by hotdognibba70 on September 6, 2017
  81. math

    a card is picked from a pack containing 52 cards . it is then replaced and a second card is picked. Find the probability that a)both cards are the seven of diamonds, b)the first card is a heart and the second a spade. c)one card is from a black suit and

    asked by terry on March 13, 2010
  82. math

    a 132 inch lenght of ribbon is to be cut into 3 pieces the longest piece is to be 39 inches longer than the shortest piece and the third piece is to be half the length of the longest piece find the length of each piece of ribbon

    asked by brandy on September 17, 2014
  83. Math

    A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft. Round to the nearest tenth, if necessary. 30 ft3 40 ft3 60 ft3 120 ft3 can someone please help me. I'm having trouble working this

    asked by Ann on February 23, 2015
  84. Math

    When Albert flips open his mathematics textbook, he notices that the product of the page numbers of the two facing pages is 156. Which equation could be used to find the page numbers that Albert is looking at? a. x+(x+1)=156 b.(x+1)+(x-2)=156

    asked by Angie on March 28, 2009
  85. Calculus

    Could someone please check my work on the following problems? I want to be sure that I'm doing them correctly; i'm just required to find the derivatives and then simplify. g(t)= t/sint g'(t)=1*sint-cost*t/(sint)^2 g'(t)=sint-cost*t/(sint)^2 y=ln(e^ax)

    asked by Joesph on October 19, 2008
  86. Math

    1. Write the ratio in the simplest form. 50: 10 (1 point) 25: 5 10: 2 5: 1* 1: 5 2. Solve the following proportion x over 2 = 8 over 9 (1 point) 144 0.44 1.78* 36 3. Sarah’s mother has a miniature village modeled after her home town. The model is 10 feet

    asked by anonymous on January 15, 2014
  87. Accounting

    Jack Smith, a baker, has been working at his friend’s bakery a part time basis for the past 3 years. As of January 1, 2018, Jack decided to pursue his own dreams of buying and selling pastries. He rented a space from his friend and entered into the

    asked by Kelia Kelly on November 21, 2018
  88. english

    What are some advantages-for both the reviewer and writer-of peer reviews? How would you encourage a reluctant peer reviewer? Thank you for using the Jiskha Homework Help Forum. First of all, most of us hate to find our OWN mistakes! It is much more fun to

    asked by GaPeach on August 22, 2006
  89. Math

    A hotel packed a breakfast for each of three guests. Each breakfast should have consisted of three types of rolls, one each of nut, cheese, and fruit rolls. The preparer wrapped each of the nine rolls, and, once they were wrapped, the rolls were

    asked by sadness on February 9, 2018
  90. History

    1. Which of these was a precedent that George Washington set? (5 points) constitutional amendment process formal presidential dinners singing of the national anthem use of a presidential cabinet 2. "The time for the new election of a citizen to be

    asked by YRN DJ on January 14, 2016
  91. Math

    Write the fraction as a percent. Round to the nearest hundredth of a percent where necessary. a) 33.33% b) 66.67% c) 83.33%

    asked by Anonymous on December 18, 2015
  92. Algebra: Quadratic Functions

    A model rocket is launched with an initial velocity of 128 ft/s from a height of 70 ft. The height of the rocket, in feet, t seconds after it has been launched is given by the function s(t)=−16t^2+128t+70. Determine the time which the rocket reaches its

    asked by Isiah on March 18, 2014
  93. inscribed angles

    A satellite, B is 17,000 miles from the horizon of Earth, Earth's radius is about 4,000 miles. Find the approximate distance the satellite is from the Earths surface. possilbe answers 13,464 17,464 20,957 21,000 I do not understand how to do these problems

    asked by lilman on May 10, 2012
  94. Chem

    Then, determine the final volume needed to dilute 20.0 ml of 1.00 M NaOH to 0.25 M. Next, find the volume of water which needs to be added. Finally, determine the moles and the mass in grams of NaOH in the solutions. Do I take 60 ml and convert it to moles

    asked by Feather on September 28, 2014
  95. Physics

    A horizontal force of 150 N is used to push a 32.5-kg packing crate a distance of 4.95 m on a rough horizontal surface. If the crate moves at constant speed, find each of the following. (a) the work done by the 150-N force? (b) the coefficient of kinetic

    asked by Abdalla A. on May 7, 2013
  96. College Algebra

    At 1:30 Marlon left his house to go to the beach, a distance of 9.375 miles. He rose his skateboard until 2:15, and then walked the rest of the way. He arrived at the beach at 3:00. Marlon's speed on his skateboard is 1.5 times his walking speed. Find his

    asked by Anonymous on September 2, 2017
  97. math

    Centered 6 meters above the ground, a Ferris wheel of radius 5 meters rotates at 1 degree per second. Assuming that Jamie’s ride begins at the lowest point on the wheel, find how far Jamie is above the ground after 29 seconds; after 331 seconds; after t

    asked by sarah B on April 13, 2010
  98. maths

    from a batch of 10 eggs 3 are rotten.2 eggs are selected in succession.Find the probability that(a)both are rotten (b)only 1 is rottewn and at least 1 is fresh. b) Probability(1rotten, 1fresh)=3/10*7/9 Notice how the probabality after drawing one rotten,

    asked by CELINA on June 6, 2007
  99. math, calculus

    Consider the functionf(x)=3x. a. Determine an expression, in terms of a and h, for the average rate of change between the points (a,f(a)) and ( a + h, f(a+h) ) for the function . Show all steps needed to find a simplified algebraic expression. b. Using

    asked by Emma Wallace on April 11, 2019
  100. Maths

    A straight river flows at a speed of 20km/h. A boater starts at the south shore and heads in ths direction of 70degrees from the shore. The boat has a speed of 20km/h in still water. Find the true speed and direction of the boat.

    asked by Anonymous on February 26, 2013

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