Questions Asked on
December 21, 2012

  1. Calculus Help!!

    Region R is bounded by the functions f(x) = 2(x-4) + pi, g(x) = cos^-1(x/2 - 3), and the x axis. a. What is the area of the region R? b. Find the volume of the solid generated when region R is rotated about the x axis. c. Find all values c for f(x) and

    asked by Anonymous
  2. Calculus

    If 0

    asked by Anonymous
  3. algebra

    In a basketball game, a regular basket was worth 2 points and a long-distance basket was worth 3 points. If there were 45 baskets in a game and 96 points total, how many regular baskets r and long-distance baskets l were made? Show the correct system of

    asked by Sophie
  4. algebra

    You decide to market your own custom computer software. You must invest $3,255 for computer hardware, and spend $2.90 to buy and package each disk. If each program sells for $13.75, how many copies must you sell to break even?

    asked by Sophie
  5. Physics

    We want to rotate the direction of polarization of a beam of polarized light through 90 degrees by sending the beam through one or more polarizing sheets.(a) What is the mini-mum number of sheets required? (b) What is the minimum number of sheets required

    asked by Brian
  6. This needs tobe turned in in 10min AT MOST URGENT!

    1. x over 5= –2 (1 point) –45 35 –10 21 2. 13x – 7 = 136 (1 point) 11 15 8 9 3. Solve the following equation: 3x – 3 = 15 (1 point) 4 5 6 7 4. Ernesto loses 14.5 pounds in 7 months. Now he weighs 156.5 pounds. Which equation can be used to find

    asked by Gabby
  7. PHYSICS

    1. Why is an electric field considered to be a vector quantity? 2. Draw the electric field around an electric dipole of +1 µC and -1 µC 3. How many electrons have been removed from a positively charged object if it has a charge of 1.5 x 1011 C? 4. A

    asked by Hayden
  8. PHYSICS

    1. A sound with a frequency of 261.6 Hz travels through water at a speed of 1435 m/s. What is the wavelength of the wave? a. 1.83 x 10 -1 m b. 3.753 x 10 5 m c. 5.486 m d. You cannot tell from the given information 2. A 23.0 kg mass of is accelerated at +

    asked by Hayden
  9. Ms.Sue or Steve can u please help me?!?!!?

    Ok these are some textbook questions i need to turn in soon could you please check and see if they are correct~ 1. x over 4 + 1 = –5 (1 point) –2 16 4 –24 2. 6x + 29 = 5 (1 point) –4 –18 204 –144 3. Combine like terms: –21a + 16a (1 point)

    asked by Gabby
  10. maths --plse help me..

    A fruit vendor buys 300 apples at Rs 50 per dozen. The vendor sold 200 of them at Rs 50 per 10 apples. At what rate per apple should the vendor sell the remaining apples to make an overall profit of 12% ?

    asked by Anonymous
  11. Calculus

    a 5m ladder rests against a vertical wall. The top of the ladder begins sliding down the wall at 2m/sec, while the foot of the ladder moves away from the base of the wall. How fast is the foot of the ladder moving away from the wall at the instant the foot

    asked by Lost One
  12. physics

    Tracy (of mass 49 kg) and Tom (of mass 65 kg) are standing at rest in the center of the roller rink, facing each other, free to move. Tracy pushes off Tom with her hands and remains in contact with Tom’s hands, applying a constant force for 0.5 s. Tracy

    asked by Anonymous
  13. VERY URGENT MATH!!!

    1. 3w – 10w (1 point) 13w –7w –7 7w 2. y + 2y +3z (1 point) 2y + 3z 3y + 3z 2y2 + 3z 6yz 3. 6r + r – 5r (1 point) 2r 1r + r 0r 7r – 5r 4. 5x + 2(x + 6) (1 point) 7x + 6 7x2 + 12 7x + 12 7x (x + 6) 5. –3m + 3(m + 6) (1 point) 6 –6m + 6 6m + 18

    asked by Gabby
  14. Algebra

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 167 and 183 cm tall? (b) How many would you expect to

    asked by DC
  15. algebra

    Which graph represents the following system of equations? y = 3x + 3 y = –x – 3

    asked by Laura
  16. geometry

    In the diagram below,BC is an altitude of ABD. What is the length of CD? If necessary, round your answer to two decimal places.

    asked by armando
  17. Math...Please Help!

    Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis.

    asked by Kayla
  18. science

    What is the most abundant metal in sea water

    asked by hadassah farell
  19. algebra

    The sum of two numbers is 82. Their difference is 24. Choose the system of equations that describes this situation. Solve by elimination to find the two numbers.

    asked by Laura
  20. Algebra

    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.) _____ x 10(to the 11th power) ways

    asked by DC
  21. algebra

    At the Wild Thing Zoo, you can rent a motorized cart to tour the grounds for a $4 initial charge and $4 per hour. An equation that represents the total cost y for x hours is y = 4 + 4x. At Safari Zoo, you can rent the same cart for a $3 initial charge and

    asked by Sophie
  22. maths --plse help me..

    MNT is a triangle in which A point lies on MN and B lies on MT. join AB. Now,if NT/AB =9/5 and if MB=10cm , then MN will be ??

    asked by Anamika
  23. maths

    there are two circles touching each other at one point. The radius of bigger circle is 4cm and smaller is 1cm. A small third circle is drawn which touches both the first two circles at one point each. A common tangent passes through all the three

    asked by faizel
  24. Chemistry

    What is the voltage for CuCl2 + Zn ZnCl2 + Cu?

    asked by Anonymous
  25. Science

    For lunch, you have a turkey sandwich on wheat bread with mayonnaise and lettuce. Describe how each component of this meal would be broken down in the digestive system. Thanks.

    asked by Hlah
  26. Math

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 167 and 183 cm tall? (b) How many would you expect to

    asked by Tammy Jones
  27. Health

    Tell me about everything on male and female reproductive system you know.

    asked by Kailie
  28. PHYSICS

    1. What is the weight of a 2.88 kg snake? 2. A girl drops a rock straight down from a bridge. Assume negligible air resistance. How fast is it going 4.0 s later? 3. A rock with a mass of 22.45 kg is falling from a tall tower. a. What is the Net Force if

    asked by Hayden
  29. language arts

    The point in the plot where Mr. Clemens falls and injures himself is the ____. (1 point) climax rising action exposition falling action Is it the rising action?

    asked by lexi.
  30. compositionII

    In Weeks 6-11, you will write a research paper. Your completed paper will be 5-7 pages in length. In Week 8, you finalized your thesis and prepared an outline of your paper. This week, Week 9, you’ll write your rough draft. Using Microsoft Word, prepare

    asked by annomyons
  31. Algebra Grade 7

    Mr and Mrs Chen have three children. suppose the chance of having wither a boy or girl is 50%. what is the probability of having two boys and one girl? 2/9? a survey with 104 responses asked what is your favorite winter activity the results are listed in

    asked by fanggirl.rockrchik
  32. Calculus

    Find the local linearization of g(x)=sqrt 4x near x=2 use local linearization to estimate g(2.05) is your estimate too high or too low?

    asked by Clay
  33. english

    “In the snow” is repeated three times in “Scott’s Goodbye.” What meaning might the writer have hoped to convey by repeating this phrase? (1 point) The snow was breathtakingly beautiful. The snow and cold were inescapable. The snow was melting

    asked by lexi
  34. physics

    The horizontal surface on which the block of mass 5.2 kg slides is frictionless. The force of 64 N acts on the block in a horizontal direction and the force of 128 N acts on the block at an angle as shown below. 5.2 kg 128 N 60 ◦ 64 N What is the

    asked by Anonymous
  35. physics

    The bars are in equilibrium, each 5 m long, and each weighing 82 N. The string pulling down on the two bars is attached 0.6 m from the fulcrum on the leftmost bar and 0.5 m from the left end of the rightmost bar. The spring (of constant 32 N/cm) is

    asked by Anonymous
  36. chemistry

    What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?

    asked by alexis
  37. Financial Management

    Coogly Company is attempting to identify its weighted average cost of capital for the coming year and has hired you to answer some questions they have about the process. They have asked you to present this information in a PowerPoint presentation to the

    asked by Mimosa
  38. physics

    A rifle fires a(n) 3 g bullet with a muzzle velocity of 370 m/s into a block of wood. The bullet comes to rest after it has made a(n) 17 cm deep hole in the wood. v a What is the magnitude of the average frictional force slowed the bullet? Answer in

    asked by Anonymous
  39. I NEED HELP!.. Algebra

    Find a solution to the following system of equations. -5x + y = -5 -4x + 2y = 2

    asked by Laura
  40. math

    a florist has 20 daisies and 36 carnations. She wants to put the same number of each type of flower into vases. what are the possible number of vases she can use?

    asked by stephy 3
  41. math 2

    a citrus farmer wants to plant 24 lemon trees and 30 orange trees in equal rows. he wants the same number of each type in each row. what are the possible number of fruit trees that could be in each row?

    asked by stephy 3
  42. Algebra 1

    An airplane travels 6200 km against the wind in 8 hours and 7080 km with the wind in the same amount of time. What is the rate of the plane in still air and what is the rate of the wind?

    asked by joe
  43. maths

    what is the volume of box if volume of cylinder is 48.125 cubic cm, which formed by rolling a rectangular paper sheet along the length of the paper. if a cuboidal box (open lid) made from the same sheet of paper by cutting out the four square of the side

    asked by omkar gangwar
  44. Math

    A street is 282 m long is covered with snow. City workers are using a snowplow to clear the street. A tire on the snowplow has to turn 47 times in traveling the length of the street. What is the diameter of the tire?

    asked by Josh
  45. algebra

    What is the solution of the system of equations? y = 3x + 7 y = x – 9

    asked by Sophie
  46. algebra

    Solve the system of equations using substitution. y = 2x + 3 y = 3x + 1

    asked by Nestor
  47. maths --plse help me..

    find the path of a moving point such its distance is from two lines 3x-2y=5and 3x+2y=5 are equal and state the name of path.

    asked by sania
  48. Pre Algebra Help ASAP

    Which of the following equations has an infinite number of solutions? a. 3x – 3 = –4x b. 2y + 4 – y = 16 c. 7x + 5 = 4x + 5 + 3x d. 6y – 2 = 2(y – 1) And please explain how I don't understand. Thanks sooooo much!!!

    asked by Anonymous
  49. Calculus

    Find dy/dx of 3 sin x cos y = 2 using implicit differentiation.

    asked by Lost One
  50. Darton College

    Explain how the process of combining radicals through addition and subtraction is similar to combining polynomials. What make two radicals like radicals

    asked by Standford
  51. Math

    The campus vets club is having a raffle and is selling 2,700 tickets. If the people on your floor of the dorm bought 297 of those tickets, what is the probability that someone on your floor will hold the winning ticket? (Enter your answer as a decimal.)

    asked by Tammy Jones
  52. applied business law

    As company ombudsman, your task is to investigate complaints of wrongdoing on the part of corporate directors and officers, decide whether there is a violation of the law, and deal with the wrongdoers accordingly. Jane, a shareholder of Goodly Corporation,

    asked by annomyons
  53. algebra URGENT!

    Solve the system using elimination. 2x – 2y = –8 x + 2y = –1 And this one: Solve the system using elimination. 3x – y = 28 3x + y = 14 Pleease help me :(

    asked by Laura
  54. physics

    A mass makes a projectile motion on a table (like the one in the projectile motion experiment) with inclination angle of the table as α=6o. The initial velocity and the initial angle are is 100 cm/s and 30 deg. respectively. What is the maximum height

    asked by anonymous
  55. Math

    If possible, completely factor the expression. (If the polynomial is not factorable using integers, enter PRIME.) x^2 - 4x - 5 = _____

    asked by Regina M
  56. math

    The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 173 and a variance of 9. The material is considered defective if the breaking strength is less than 167 pounds. What is the probability that a single,

    asked by Anonymous
  57. Math

    Twelve people serve on a board and are considering three alternatives: A, B, and C. The choices followed by vote is shown in following table. Determine the winner, if any, using a Borda count. (ABC) 2 (ACB) 4 (BAC) 2 (BCA) 1 (CAB) 2 (CBA) 1 The winner is

    asked by DC
  58. algebra

    Does the system of equations have no solution, one solution, or infinitely many solutions? y = x + 4 y – 4 = x

    asked by Laura
  59. algebra

    Solve the system of equations using substitution. y = 2x – 10 y = 4x – 8

    asked by Laura
  60. chemistry

    Shown below is a schematic representation of the water-ethanol phase diagram. Making reference to the phase diagram, explain in a few sentences how one could enrich a solution of 15 percent ethanol - 85 percent water to a composition of 60 percent ethanol

    asked by C
  61. Math

    Assume f(x) = x2 + 3. Find the functional value requested. f(-5) =

    asked by Tammy Jones
  62. Science

    is the change of seasons an example of climate change?

    asked by Anonymous
  63. microeconomics

    How the technical rate of substitution and marginal product are related and what is their difference? i only wrote their definitions The technical rate of substitution measures the rate which the firm has to substitute one input for another, for keeping

    asked by liza
  64. Chemistry

    how much heat must be lost by 375 g of water for it to change from a liquid to a solid?

    asked by Halie
  65. maths

    integrate x^2/(x^4+a^4) dx

    asked by sapna
  66. physics

    Think of a projectile motion on an inclined table with the inclination angle α=6.The elevation angle is θ=30 and V0 is 40 cm/s. What is the percentage error (approximately) in hmax if the measured value of hmax is 5 cm? (sin6=0.1, g=10 m/s2)

    asked by anonymous
  67. Algebra

    The campus vets club is having a raffle and is selling 2,700 tickets. If the people on your floor of the dorm bought 297 of those tickets, what is the probability that someone on your floor will hold the winning ticket? (Enter your answer as a decimal.)

    asked by DC
  68. Math

    Do the following. (a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log 8.6 (114) =_____ (b) Give a calculator approximation (correct to four decimal places). log 8.6 (114)~~_____

    asked by Regina M
  69. PHISIC help

    A bouncy rubber ball is dropped from a height of about a metre above the ground .it falls to the ground, bounces and then rises back to almost the height from which it was dropped. Describe the main energy transformations that take place from the point at

    asked by zak
  70. Language Arts

    Scott’s Good-bye We saw the months of wicked weather, As day to painful night did turn, Waiting, huddled close together For the frozen sun’s return. Our nights were almost endless torture. Our food was gone. Our fuel was low. We came in search of grand

    asked by Eric
  71. Language Arts

    I need Help finding in understanding to get correct answer Before we buy our tickets. (1 point) Before we buy or tickets tomorrow. Before we buy our tickets, we should check the weather. We buy our tickets before. This is a complete sentence. No correction

    asked by Eric
  72. Calculus

    Suppose that f(x), f'(x), and f''(x) are continuous for all real numbers x, and the f has the following properties. I. f is negative on (-inf, 6) and positive on (6,inf). II. f is increasing on (-inf, 8) and positive on 8, inf). III. f is concave down on

    asked by Anonymous
  73. Algebra w/Applications

    Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. (Round your answer to the nearest cent.) $3,000 balance, 21% rate,

    asked by Traci
  74. english

    how does Romeo show he is fearless when he kills Tybalt? and how does Romeo show hes fearless when he goes an see Juliet on the balcony?

    asked by zackary
  75. algebra

    Does the system of equations have no solution, one solution, or infinitely many solutions? y = 2x – 3 y = –x + 3

    asked by Laura
  76. algebra

    Identify the graph of the pair of equations as parallel, intersecting, or identical. y = 5x – 4 y = 5x – 5

    asked by Laura
  77. English-CItation

    How to cite a PDF file?

    asked by Anonymous
  78. algebra

    The length of a rectangle is 2 cm more than four times the width. If the perimeter of the rectangle is 84 cm, what are its dimensions?

    asked by Nestor
  79. algebra

    Solve the system of equations using substitution. y = x + 6 y = –2x – 3

    asked by Laura
  80. Accounting

    statement that the difference between the opening bank balance ($30,000) and the January statement balance ($75,000) is pure profit.

    asked by James
  81. algebra

    Hey, I don't undertand how to solve this equation using substitution. 3y = -1/2x + 2 y= x + 9

    asked by Laura
  82. Math emergancy

    find the two ratios that are eequivalent to each given ratio 9/12 4/20 15/25 7/12 14/7 11/22 10/3 18/28 12/27 i don't no how to do this so yea please answer

    asked by destiny
  83. ap calculus

    f(x)=x^3-2x^2+x and f'(x)=3x^2-4x+1 Find the value(s) of x where f(x) has a horizontal tangent (slope=0)

    asked by sandra
  84. physics

    An object is thrown vertically upward such that it has a speed of 56 m/s when it reaches two thirds of its maximum height above the launch point. Find the maximum height h. The acceleration of gravity is 9.8 m/s 2 . Answer in units of m

    asked by Anonymous
  85. Math emergancy

    find the two ratios that are eequivalent to each given ratio 9/12 4/20 15/25 7/12 14/7 11/22 10/3 18/28 12/27 i don't no how to do this so yea please answer

    asked by destiny
  86. Math

    Mary is as old as Mario will be when Mary is twice as old as Mario was when Mary’s age was half the sum of their present ages. Mario is as old as Mary was when Mario was half the age he will be 10 years from now. How old are Mary and Mario?

    asked by Ash__
  87. Science need help

    Astronomers believe that the biggest stars in the Galaxy may be a hundred times more massive than the Sun, but are a million times brighter. Would you expect such stars to have longer, shorter or comparable lifetimes to that of the Sun?

    asked by zak
  88. math

    Find the volume of the solid generated by revolving the curves y=x^2+1 & y=x+3. after finding the intersection, x= 2 & x=-1 can someone show me how to integrate this funct. with simplest steps(i mean do not use substitution formula). if im x miataken the

    asked by ifi
  89. maths --plse help me..

    7root3/(10^1/2 +3^1/2) - 2root5/(6^1/2+5^1/2) - 3root2/(15^1/2+3^root2)

    asked by Anonymous
  90. Math

    Twelve people serve on a board and are considering three alternatives: A, B, and C. The choices followed by vote is shown in following table. Determine the winner, if any, using a Borda count. (ABC) 2 (ACB) 4 (BAC) 2 (BCA) 1 (CAB) 2 (CBA) 1 The winner is

    asked by Regina M
  91. Math

    Find the probability whose odds against are given in the problem. Odds against are 5 to 7. ____?

    asked by Regina M
  92. m

    Solve the equations. (a) 2D + 3 = 13 D = _____ (b) 12E - 3 = 0 E = _____

    asked by Regina M
  93. math

    what is the average of 82,58,13

    asked by cameon
  94. Science

    Is there a website which tells me how something moves through my body when I drink it?

    asked by Anonymous
  95. Calculus

    If f(3) = 7 and f'(x) = sin(1+x^2)/(x^3-2x), then f(5) = (a) -16.006 (b) -9.006 (c) -0.008 (d) 6.992 (e) 7.008

    asked by Anonymous
  96. maths-sets

    let A be a nonempty set such that A *B = A *C show that B = C

    asked by amit
  97. Sandy Hook shooting report paper

    I am writing a paper for my school blog about the Sandy Hook shooting in Connecticut. I was wanting any thoughts and all of that stuff. There were many people killed; the shooter, 20 kids, 6 teachers, and his mother. What is your opinion, thoughts,

    asked by fanggirl.rockrchik
  98. College Algebra

    Why is t= ln(2)/.04 the same as t= 25ln(2)? Please explain it step by step. What rule do you use or how do you change the .04 to the 25?

    asked by Linda