# Eva

Most popular questions and responses by Eva

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

2. ## 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???

3. ## 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

4. ## 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

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

6. ## 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

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

8. ## 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

9. ## Social studies

The spreading information to convince others or an idea

10. ## 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

12. ## 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

13. ## 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?

14. ## 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

15. ## 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.)

16. ## ethics in criminal justice

what is the criterion of reasonableness in the study of ethics?

17. ## general

What subjects do students study in the United Kingdom at the age of fourteen? http://en.wikipedia.org/wiki/Education_in_England Scroll down. =) Thank you. English Mathematics Science Information and Communication Technology (ICT) Design Technology History

18. ## 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

19. ## math

which equation is equivalent to 5x-2(7x+1)=14x? why? a -9x-2=14x b -9xt1=14x c -9x+2=14x d 12x-1=14x

20. ## 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.

21. ## 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

22. ## 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/

23. ## 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

24. ## 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

25. ## math

A 120-foot long rope is cut into 3 pieces. the first rope is twice as long as the second piece of rope. the third piece of rope is three times aS LONG AS THE SECOND PIECE OF ROPE. WHAT IS THE LENGTH OF THE LONGEST PIECE OF ROPE? a 20 feet b 40 feet c 60

26. ## 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

27. ## 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

28. ## 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

29. ## 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?

30. ## microeconomics

among monopoly, oligopoly, monopolistic competition, and perfect competion, how would you classify the markets for each of the following drinks?

31. ## 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

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. ## 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

34. ## 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.

(I have no idea how to even approach this question. Can anyone please help me?) Some people have proposed that the earth could solve its population problem by shipping people off to space colonies, each containing about 10,000 people. Assuming that we

36. ## chemistry

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

37. ## Ethics

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

38. ## Chemistry

How many atoms are in 0.075 mol of titanium?

39. ## 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?

40. ## 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?

41. ## statistics

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

42. ## 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

43. ## 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

44. ## 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

45. ## 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

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.

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

48. ## law

A crime scene investigator has located a witness at a crime scene, but he/she is uncooperative. The investigator strongly believes that this witness is fearful of something and is uncooperative. Describe the handling of witnesses and evidence. What would

49. ## 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

In early july, Susy is in Fabulous Freddie's Fireworks Forum Purchasing fireworks for the upcoming Independence Day Holidays. There are "no smoking" signs at the entry door to the store and throughout the store. This store operates only a few weeks in an

51. ## Algebra

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

52. ## math

1/4 + 1/8 = i need to simplify it but i don't know how!! please help and thank you.

53. ## Physics

A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.0 m/s2, what is the coefficient of friction between the

54. ## MATH HELP!!!!!!!!

orlando likes baseball. He's a good fielder, but he wants to improve his batting average. currently .200 (or 20%) for the first part of the season. he practiced a lot with a friend and managed to hit 10 out of 20 times that he was up to bat that season.

55. ## 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?

56. ## 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.

57. ## 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 ?

58. ## 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!

59. ## thermochemistry college

does anyone know profesor of green river community college, auburn,wa, sue critchlow ????

60. ## Calc I

A particle moves at varying velocity along a line and s= f(t) represents the particle's distance from a point as a function of time, t. sketch a graph for f if the average velocity of the particle between t=2 and t=6 is the same as the instantaneous

61. ## Math

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

62. ## 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

63. ## english

OF MAN’S first disobedience, and the fruit Of that forbidden tree whose mortal taste Brought death into the World, and all our woe, With loss of Eden, till one greater Man Restore us, and regain the blissful Seat, 5 Sing, Heavenly Muse, that, on the

64. ## 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

65. ## math

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

66. ## 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?

67. ## 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.

68. ## physics

A pelican ﬂying along a horizontal path drops a ﬁsh from a height of 3.3 m. The ﬁ!@#\$%^&ravels 8.7 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2 . Answer in units of

69. ## microeconomics

among monopoly, oligopoly, monopolistic competition, and perfect competion, how would you classify the markets for each of the following drinks? a. tap water b. bottled water c. cola d. beer

70. ## piont math spring break

which piont lies on the line represented by the equation below? 5x+4y=22 a -2,11/4 b -1,17/4 c 2,3 d 6,2

71. ## math-Algebra

Hey i need help on this problem. 8-9t=21t-17 Can someone show me how to do it?

72. ## Algebra

I need help on one particular part of algebra because i forgot what my teacher said! Here is the question: Directions: Find the x- intercept of the graph of the equation. 1. x+ y= 5

73. ## Spanish

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

74. ## 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.

75. ## 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

76. ## 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

77. ## 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

78. ## Math

The length of a rectangle is 1 more than the side of a square and the width of the rectangle is 1 less than the side of the square. of the area of the rectangle 35, find the length of the side of the square.

79. ## us history`

a settled area that is a smaller political unit then a country or city is called a what>?

80. ## factoring help

2 factor 4x -32x+48 and 2 2 2 factor (x -1)(x -4)(x -9) please and thank u verrry much is that this is due tommorow!!

81. ## 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

82. ## totally math

what is the equation of the line that has a slope of 4 and passes through the piont (3,-10)? a y=4x-22 b y=4x+22 c y=4x-43 d y=4x+43

83. ## 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

84. ## science

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

85. ## Biology

What are 5 adaptations that can help placental mammals survive in their environment?

86. ## Biology

Could i pls have an answer to this question:5 adaptations that help placental mammals survive in their environment?

87. ## Chemistry

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

88. ## math

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

89. ## 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

90. ## math

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

91. ## 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

92. ## 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

93. ## 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

94. ## Algebra

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

95. ## Physics

In the reaction U gives Th + He 6.88*10-13 J energy are released as the kinetic energies of the products. If the ratios of the masses Th to He is 234:4 find the kinetic energy of the alpha particle

96. ## math

how to figure out ? % of 25=20 and 25% of ? = 7

97. ## Calculus

tan 0=1 csc 0 = sqrt. 2 cos 0 = sin 0 os 0 = cos (-pie/6) The 0s means that symbol for angle. Please someone help me do these problems.

98. ## 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

99. ## music

can u help me found a song that's online that has the music so i can play the song on my clarient it called bruno mars grenade can any1 help me found the music for that song on a clarient.... please