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

If 0

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

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?

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

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

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

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 +

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)

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% ?

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

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

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

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

15. algebra

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

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.

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.

18. science

What is the most abundant metal in sea water

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.

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

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

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 ??

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

24. Chemistry

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

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.

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

27. Health

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

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

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?

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

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

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?

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

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

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

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?

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

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

39. I NEED HELP!.. Algebra

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

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?

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?

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?

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

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?

45. algebra

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

46. algebra

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

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.

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!!!

49. Calculus

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

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.)

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,

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 :(

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

55. Math

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

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,

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

58. algebra

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

59. algebra

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

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

61. Math

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

62. Science

is the change of seasons an example of climate change?

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

64. Chemistry

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

65. maths

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

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)

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.)

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)~~_____

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

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

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

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

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,

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?

75. algebra

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

76. algebra

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

77. English-CItation

How to cite a PDF file?

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?

79. algebra

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

80. Accounting

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

81. algebra

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

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

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)

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

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

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?

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?

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

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)

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

91. Math

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

92. m

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

93. math

what is the average of 82,58,13

94. Science

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

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

96. maths-sets

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