# eva

Popular questions and responses by eva
1. ## Probability

A survey finds customers are charged incorrectly for 2 out of every 10 items. Suppose a customer purchases 13 items. Find the probability that the customer is charged incorrectly on at most 2 items.The probability that the customer is charged incorrectly

If 1100 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. I'm supposed to type the answer in cubic centimeters... my answer was 2500 cm^3 but it's wrong... I have also

3. ## Maths lit,business studies,consumer studies,tourism

I chose this subjects Maths literacy,Consumer studies,business studies,tourism but i wanna know what can i do with does subjects after finishing school and i wanna become a 'Chef' are these subjects right or wrong for my subjects???

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of

5. ## Chemistry

When 0.07 moles of ammonium sulfate ((NH4)2SO4) are dissolved in enough water to make 254 milliliters of solution, how many ammonium ions are present?

6. ## Chemistry

A chemist dissolves 0.096 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 10.8-mL sample of this solution is then transferred to a second 500-mL volumetric flask and diluted. What is the molarity of CuSO4

7. ## Teaching in Early childhood progras

1)When children rely on outside controls to guide their actions, they're operating at the _______ level of self-regulation. A. adherence B. amoral C. internalization D. identification 2)Which statement most accurately describes the Developmentally

8. ## civics

The phrase, “the Elastic Clause,” comes from which powers of Congress? A.enumerated powers***** B.implied powers C.inherent powers D.reserved powers Please help asap

10. ## Ethics

The Edwin Meese syndrome, giving examples from the fields of probation and parole.

11. ## Physics

A small ball rolls horizontally off the edge of a table that is 1.20 m high. It strikes the floor at a point 1.52 m horizontally from the table edge. How long is the ball in the air? What is the velocity of the ball when it hits the floor?

12. ## Teaching in Early childhood progras

Why should teachers offer a variety of small-group activities for children every day? I. The children will be at different developmental levels. II. The children will be coming from different cultural backgrounds. III. Different children will be interested

13. ## civics

Which of the following is true about members of the Supreme Court? A.Justices are elected for life and cannot be impeached. B.Justices are nominated by the president but must be approved by the Senate. C.People nominated to the Supreme Court must have a

14. ## Civics

How does the principle of separation of powers limit Congress? A.Congress cannot enforce the laws that they make. B.Congress must interpret legislation for the courts. C.Congress must rely on the executive branch to introduce legislation. D.Congress must

15. ## Chemistry

Predict the effect of each of the following by mass of water in the hydrate and the chemical of the hydrate? a) not heating the hydrate enough b) overheating the hydrate and producing some copper (ii) oxide C) the initial hydrate appears to weigh less than

16. ## learning skills

According to the text, why should teachers of young children share science activities with parents? A. Everybody should know the facts of science. B. Parents want to learn science. C. Science relates to all aspects of a child's life. D. Parents are their

17. ## math

the sides of a quadrilateral are in the ratio 1:3:5:7. if the perimeter of the quadrilateral is 64cm,what is the length of the second longest side/

18. ## English

What was the Clinton Healthcare plan in the early 1990's? Know of any links or info that I can read up about it? Thanks!

19. ## Chemistry

For the equation below, if 58.6 grams of Al were to react with 540 grams of H2SO4, how many grams of H2 would be produced? 2Al+3H2SO4--->1Al2(SO4)3+3H2

20. ## chemistry

Olive oil has a density of o.92 g/mL. Waht would be the mass of 1.1 L of olive oil?

21. ## Chemistry

How many atoms are in 0.075 mol of titanium?

22. ## civics

Which power would give a president greater legislative power than the office currently has? A. power of a line-item veto B. power of executive privilege C. power to call a special session*** D. power to recommend legislation Can you check my answers

23. ## physics - 2d vector question

A swimmer travels in a northerly direction across a 500 m wide lake. Once across, the swimmer notices that she is 150 m east of her original starting position. Determine the distance traveled and displacement.

24. ## Astronomy

suppose a rock's chemical composition is analyzed and is found to contain 5x more potassium atoms than argon atoms. When did the rock form? (10 million, 100 million, 500 million, 2 billion, or 4.5 billion years ago.)

25. ## intro to paralegal

i have a discussion post that im not quite sure how to answer, since i am unsure how to interpret it. It reads as follows: The American common law system provides the judicial system with two primary duties 1) interpreting the meaning of statutes and

26. ## Social studies

The spreading information to convince others or an idea

27. ## math

Find period and phase shift and amplitude of y=10sin(x/4)-4pi)-5? The amplitude =10 Period=? Phase shift=?

Please read the following excerpt from an essay. The sentences are numbered to help you respond to the question that follows. (1) After Sean was arrested for breaking into a pawnshop, I began to wonder. (2) Why did some kids from my neighborhood end up in

29. ## physics

You work at a garden store for the summer. You lift a bag of fertilizer with a force of 122 N, and it moves upward with an acceleration of 0.760 m/s2.

30. ## Physics

A rope is attached from a truck to a 1403 kg car. The rope will break if the tension is greater than 2375 N. Neglecting friction, what is the maximum possible acceleration of the truck if the rope does not break? m/s2 If the truck can reach 30 mph within

31. ## Teaching in Early childhood progras

Self appraisals should not be used to assess which of the following? A. Math concepts B. Dispositions regarding tasks C. IEP adherence D. Literacy my answer is c.

32. ## Teaching in Early Childhood Programs,

Which of the following is least characteristic of internalization? A. It occurs at different times for different issues. B. It involves behaviors and attitudes that become basic parts of each child's personality. C. It involves some measure of

33. ## Math Algebra

f varies jointly as g2 and h, and f = 50 when g = 4 and h = 2. Find when g = 3 and h = 6

34. ## Algebra

Let g(x) = -x2 + 4x + 1. Find g(k)

35. ## Math

Determine whether the equation represents direct, inverse, joint, or combined variation. y = 2x on 3rd

36. ## statistics

90% confidence; the sample size is 1150 of which 40% are successes.

37. ## english

correct these sentence. i had to rewrite them into reported speech . are they okay? 1-why are you decorating the house? she asked me why i was decorating the house. 2-what style do you like? she asked me what style did i liked. 3-do you always get what you

38. ## Calculus (pleas help!!!)

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of

39. ## thinking outside of the box

one taxi company charges 75 cents for the first quarter mile and 15 cents for each additional mile the competing taxi company charges 1.00 for the first quarter mile and 10 each additional mile what distance would produce the same fare for the two taxi

40. ## human relations

one taxi cab company charges 75 cents for the first quarter mile and 15 cents for each additional quarter mile. the competing taxi company charges 1.00 for the first quarter mile and 10 cents for each additional mile. what distance would produce the same

41. ## totally math

some ordered pairs for a linear function of x are given in the table below. x y 1 1 3 7 5 13 7 19 sorry im not good at tables which of the following equations was used too generaTE the table above a y=2x+1 b y=2x-1 c y=3x-2 d y=4x-3

42. ## ethics in criminal justice

is the police code of ethics considered normative ehics or meta-ethic? why?

43. ## science

if ice forms on the outside of a glass cup, which would be the likely temperature? 1.36degreesf 2.25 degreesf 3. 40degreesf 4.80degreesf 5. 33degreesf

44. ## Physics

A Coast Guard airplane needs to drop a rescue package to a ship floating adrift in the ocean. The plane flies 55 m above the ocean at a speed of 215 km/h. How far away from the ship should the crew drop the package out of the plane so that the package hits

45. ## science

why would droplets of water form on the outside of a glass cup?

46. ## Calculus

Area of rectangle = xy = xã(4r^2 - x^2) Take the derivative. I am having trouble with the algebra.

47. ## Chemistry

What are the five(5) indications that show that a reaction has taken place? Thanks

48. ## Chemistry

Please i need sum help in balancing these equations: 1)Phos(p)+Bromine(Br)=phostribromide(PBr) 2)Cacl2+NAHCO3+H2O=Nacl=Ca(OH)2+H2Co3 Thank You

49. ## significant figures

hi what is 43342 to 1sf because my old maths teacher said if you put zeros after the first number then they count as sf too, but on bbc bitesize it says the answer is 40000?? that is true because 43342 to 1sf is 4e4 which is 40000 the one sig fig is

50. ## Math

Suzie measured a neighborhood park and made a scale drawing. The scale she used was 2 inches : 1 yard. A soccer field in the park is 59 yards wide in real life. How wide is the field in the drawing?

51. ## science

How does a large body of water like Lake Superior affect the temperature of the surrounding land overnight?

52. ## science

For a given watershed, should only people who live downstream of water should be concerned with the management of water resources?

53. ## civics

How are the listed rights different in Florida than in the U.S. Constitution? A. Florida’s Declaration of Rights does not have the force of law. B. Florida’s Declaration of Rights comes before the Preamble.** C. The U.S. Bill of Rights does not mention

54. ## civics

Why would it not be appropriate for Congress to get the Supreme Court’s opinion about a bill it is considering? A.It would check the President’s power of veto. B.It would upset the legislative process. C.The Supreme Court cannot rule on a law that does

55. ## civics

Which are the main philosophies of judicial interpretation? Select all that apply. A.judicial activism B.judicial jurisdiction C.judicial restraint D.judicial review E.judicial standing

56. ## Civics

Which is an important purpose of having the president serve as the military’s commander-in-chief? A.civilian control of the military B.fewer attacks by foreign powers C.increased efficiency in the chain of command ** D.more experienced leaders Please

57. ## civics

Discuss the increase and decrease of presidential powers. Define “Imperial Presidency” and give two examples of presidents who increased presidential power. What is an advantage and a disadvantage of increasing presidential power?

58. ## science

How does structure and bonding affect acid-base properties?

59. ## math

what is a plus b minus c times 5 ? :'(

60. ## Maths

if 14 men can cultivate 42 acres of land in 18 weeks how many week will 21 men working at the same rate take to cultivate 56 acres of land

61. ## Kinematics

A bullet is fired horizontally from a height of 45 m and hits the ground 2000 m away. With what velocity does the bullet leave the fun?

62. ## Astronomy

suppose a rock's chemical composition is analyzed and is found to contain 5x more potassium atoms than argon atoms. When did the rock form? A) 10 million years ago B) 100 million years ago C) 500 million years ago D) 2 billion years ago E) 4.5 billion

63. ## Matrix, math

A = 2 x 2 -1 0 0 -1 find n that A^n * B = C B = 2 x 1 0 1 C = 2 x 1 1 0 answer is 6, but I don't know why find A^2014 the answer is 0 1 -1 0 but I don't know why

64. ## Matrix, math

I have matrix A = -1 0 0 -1 B = 0 1 c = 1 0 find n that A^n * matrix B = C find A^2014

65. ## Math

The yearbook club is having a bake sale to raise money for the senior class. Large cupcakes are sold for \$1.25 each and small cupcakes are sold for \$0.75 each. If 105 cupcakes were sold for a total amount of \$109.75, how many large cupcakes did the

66. ## Maths

Only using 2357,what number is a three digit number that add by a four digit number and equals to a five digit number? You can only use zero on the last digit of the four digit number.

If you’re a Canadian exporter would you like to see a higher Canadian dollar or a lower Canadian dollar in relation to the US Dollar? Explain using an example. I would like to see what perspectives different people have

68. ## Help on Social Studies please!

Part A: What is the basic independent unit of world politics? a. country b. province c. nation *** d. organization Part B: Which of the following groups is an example of the basic unit you selected in the previous question? a. people who share a common

69. ## Economics

analyze what happens to the market for cheeseburgers if the price of cheese rises (cheese being apart of the cost for a cheeseburger) . Be specific and explain what happens ( or is not affected) for each of the following: 1. the supply curve 2. the

70. ## Chemistry

A chemist dissolves 0.096 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 10.8-mL sample of this solution is then transferred to a second 500-mL volumetric flask and diluted. What is the molarity of CuSO4

71. ## Spanish

fill in the missing letters in this sentence. Quizas anado una ---h---d-de--o picado tambien.

72. ## physics

A friend in another city tells you that she has two organ pipes of different lengths, one open at both ends, the other open at one end only. In addition, she has determined that the beat frequency caused by the second-lowest frequency of each pipe is equal

73. ## Math

-9(-5x+2)= -4(3x+2) I keep getting x=.30 but I know it's wrong!

74. ## Math

Solve -2x ____

75. ## Zoneton

Solve: -2x____

76. ## critical thinking

Which of the following is an example of an indefinite pronoun? A. This B. You C. Which D. Each my answer is a.

Which of the following is a common error in composing a thesis statement? A. Your thesis statement is specific as opposed to general. B. You offer an original perspective on a familiar theme. C. You focus your thesis statement after you begin writing. D.

78. ## physics

A block (mass m) hangs from a spring (spring constant k). The block is released from rest a distance d above its equilibrium position. (a) What is the speed of the block as it passes through the equilibrium point? (Use any variable or symbol stated above

79. ## learning skills

A natural way to reinforce science process skills and introduces the scientific method. This strategy, especially appropriate for primary grades, is to have children do which of the following? A. Begin a collection B. Manipulate objects C. Observe D. Go on

80. ## Physics

In class, we've been working on moment of inertia and recently did a lab regarding its usage. I don't feel too confident with the material yet and was hoping someone could look over my work and offer advice on what to do. We used solid spheres in the lab

81. ## physics

A 2011 kg elevator moves with an upward acceleration of 1.9 m/s2. What is the tension in the cable that supports the elevator?

82. ## COMBINED OPERATION ON FRACTIONS

J MADE 3 OVER 5 OF JOURNEY 3 OVER 4 OF REMEINDER BY TRAIN N WALKED REST.DISTANCE WALKED 3 KM.HOW LONG WAS THE JOURNEY

83. ## Physics I

I'm not sure how to address any of these. I"ve attempted them but each time I do, I've gotten different answers. I'm not even sure where to begin. 1. The Duke’s efforts to conquer the Count are starting to really falter. He has been forced back away from

84. ## Precalculus

The revenue and cost equations for a product are R = x(50 - 0.0002x) and C = 12x + 150,000 where R and C are measured in dollars and x represents the number of units sold. How many units must be sold to obtain a profit of at least \$1,650,000? What is the

85. ## Precalculus

The revenue and cost equation for a product are R = x(75 - 0.0005x) and C = 30x + 250,000 where R and C are measured in dollars and x represents the number of units sold. How many units must be sold to obtain a profit of at least \$750,000? What is the

86. ## Precalculus

A rectangle is to be constructed so that it is bounded by the x-axis, the y-axis, and the line y = -3x + 4. What is the maximum area of this rectangle?

87. ## Precalculus

A farmer has 1000 feet of fencing materials available to fence a rectangular pasture next to a river. If the side along the river does not need to be fenced, what dimensions maximize the enclosed area? What is the maximum enclosed area?

88. ## math

If evies chicken lays 4 eggs in 5 days how many days will it take for evies chicken to 16 eggs?

89. ## Geometry

Did I solve the following correctly? I had to the fin the midpoint. A (-3, 2) B (5, -4) I did the midpoint formula: M(-3+5/2, 2+ -4/2=M (2/2, -2/2). Is (2/2, -2/2) the correct midpoint?

90. ## Literature

American literature homework question: To Kill a Mockingbird? Can someone help me understand the following question, please?: Of all the ways an author has of telling us about a character, how do we learn about the characters in To Kill a Mockingbird? -I

91. ## Teaching in Early childhood progras

_______ are helpful in assessing a variety of children's skills, including both cognitive abilities and motor skills. A. Art projects B. Smiley-face teacher evaluations C. Standardized tests D. Student-led conferences my answer is a.

92. ## math

x square plus 12X plus 4 equals 0 what is the value of x

93. ## Geometry

Kevin has a salt water aquarium.As Shown below in the shape of a rectangular prism. ( base 36 in, width 18in,height 20 in) . When a rock is submerged into the aquarium the water level rises 0.25 inches. What is the voulume of the rock ?

94. ## science

When 4.56 g of a nonelectrolyte solute is dissolved in water to make 275 mL of solution at 22 °C, the solution exerts an osmotic pressure of 873 torr.

95. ## Algebra

Decide whether the given relation is a function of x. (NO CREDIT WILL BE GIVEN WITHOUT AN EXPLANATION). Give the domain. y=-7/x-16

96. ## Algebra

i try this one but graphmatica gives me different graph. Please help. Solve for y in terms of x and replace y with the function notation f(x). -2x + 5y = 9

97. ## Algebra

Here is the question : Determine whether the equation represents direct, inverse, joint, or combined variation. y=2x^3

98. ## physics (science)

John walks 1.0 km north, turns and walks 1.2 km at 50 degrees north of due east, and then turns and walks .8 km at 25 degrees north of east. what is the resultant distance and direction he has flown

99. ## geometry

WHAT IS ad TO THE NEAREST 10 ON A KITE WHEN THE KITE IS22,7, AND 12