1. Government

Would someone mind checking my answers? Thanks! (Answers at bottom) And if anyone is willing to explain the final two questions to me and maybe help, thatd be much appreciated. 1.) "In the late nineteenth century, political leaders in the United States

2. Social Studies

1)What is one example of the way a rise in productivity during the 19 fifties improve the standard of living in the United States? It gave workers more time off It led to sharp increase in urbanization It led to the end of discrimination in the United

3. Calculus

The base of a solid is bounded by the curve y=sqrt(x+1) , the x-axis and the line x = 1. The cross sections, taken perpendicular to the x-axis, are squares. Find the volume of the solid a. 1 b. 2 c. 2.333 d. none of the above I got a little confused, but

4. Math

You start a search for a buried object by marking the center of the field as (0,0), with coordinates giving distances in yards. Coordinates to the north or east are positive, and the coordinates to the south or west are negative. You find nothing at

5. Science

If 465 cm cube of sulphur(iv)oxide,can diffuse through porous partition in 30 seconds,how long will an equal volume , 620 cm cube of hydrogen sulphide take to diffuse through the same partition?(H=1, S=33, O=16)

1 Jamal writes the letters K-A-N-S-A-S on cards and then places the cards in a hat. What is the probability an N? 1/3 1/5 5/1**** 6/1 2 Jennifer writes the letters M-O-N-T-A-N-A on a cards and then places the cards in a hat. what is probability of picking

7. Chemistry

The solubility product for Ni(OH)2(s) is 1.6 ✕ 10−16. Calculate the value of ℰ° for the following half-reaction. Ni(OH)2 + 2 e− → Ni + 2 OH − I have no idea what equation to use or how to solve this problem

8. S.S

Lesson 10: Unit Test CE 2016 Social Studies 8 B Unit 6: Meeting New Challenges What was a common thread in the fall of communist regimes throughout Eastern Europe? A) a decline in education and health care B) poor economies and demands for more rights C) a

9. Calculus

Write the integral in one variable to find the volume of the solid obtained by rotating the first-quadrant region bounded by y = 0.5x^2 and y = x about the line x = 7. I have to use the volume by disks method, but I'm confused about how to set it up and

10. Science

I need to make an acrostic poem for the word ECOSYSTEM and each letter has to be a phrase. I need help.

Suppose you are driving to visit a friend in another state. You are driving 60 miles per hour. You must drive 480 miles total. If you have already driven 120 miles, how long will it take you to reach your destination? Use H to represent the number of hours

12. Math

There are 14 blue marbles 8 red marbles and 12 green marbles in a jar. What is the ratio of the total number of marbles to the number of red marbles? 1: 24:8**** 2: 34:8 3: 8:34 4: 8:24 Can someone check my answers?

13. Calculus

A bacteria population is 3000 at time t = 0 and its rate of growth is 1000 · 6t bacteria per hour after t hours. What is the population after one hour? (Round your answer to the nearest whole number.)

14. Algebra 1

Please help me with this math problem: divide (20x^2-12x+8)/(2x+8) these are the choices: A. 10x-34+ 280/2x-8 B. 10x+34+ 280/2x-8 C. 10x+46+ 376/2x-8 D. 10x-46+ 376/2x+8 Thanks so much.

15. physical science

How much work in N * m is done when a 10.0-N force moves an object 2.5 m? a. 0.25 N*m b. 2.5 N*m c. 25 N*m d. 4.0 N*m please help me thank you so much!!

16. math

Find the sequence of the first five partial sums S1, S2, S3, S4, and S5 of the geometric sequence by adding terms. 9, 12, 16, 64/3, 256/9,... S1 = S2 = S3 = S4 = S5 =

17. history

How did Virginia’s population numbers change in the last half of the 1600s? A. The population fell due to increased disease and warfare with the Native Americans. B. New settlers arrived and replaced those who died from the harsh life and disease,

18. Math

1. Choose two animals with different speeds. You can choose from the chart that starts at the bottom of this page or do research to choose your own. 2. Design a fair race in which the two animals have an equal chance of winning if they race at their top

19. History

How did the Colombian Exchange encourage the growth of European colonies? I need some help with this question. I think it's because that the European ships brought animals and food and crops so that they could live and survive and thrive, therefore making

20. Math

Solve for unknown quantity in each proportion K/3 = 3/9 A 1 B 3 C 9 D 27

21. Calc

Find the linear approximation of the function g(x) = fifth root(1 + x) at a = 0. g(x)≈ 1+(x/5) Correct: Your answer is correct. Use it to approximate the numbers fifth root (0.95) and fifth root (1.1) (Round your answers to three decimal places.)

22. Calculus

An object has a constant acceleration of 40 ft/sec^2, an initial velocity of −20 ft/sec, and an initial position of 10 ft. Find the position function, s(t), describing the motion of the object.

23. Science

solve the system of equations algebraically. show all your steps. y=x^2+2x y=3x+20 Can someone show me step by step on how to get the answer it's, there are answers like this that is going to be on my math test and I don'tget it.

24. Algebra 1

Hi I really need help with this problem, thanks. Divide (20x^2-12x+8)/(2x+8) these are the choices: A. 10x-34+ 280/2x-8 B. 10x+34+ 280/2x-8 C. 10x+46+ 376/2x-8 D. 10x-46+ 376/2x+8 Thanks so much.

25. social studies

Which quotation sums up Herbert Hoover's beliefs about government's role

26. Math

If vector u = 20 m due North and vector v =10 m  at 30 degrees East of North, find u + v and u − v.

27. English

1. I had a haircut yesterday. 2. I got a haircut yesterday. 3. I had my hair cut yesterday. 4. I got my hair cut yesterday. 5. I cut my hair yesterday myself. --------------------------------------- Does #1 or #2 mean #3 or #4? Or Does #1 mean #5?

28. art

true or false john constable created hundreds of thumb nail sketches and studies before beginning a final piece

29. Math

Carson is visiting the zoo on a field trip! While at the zoo, he sees a 10 foot tall adult elephant standing next to a 15 foot tall statue that is casting a 18 foot shadow. Carson wants to know the length of the elephant’s shadow. if you have the answer

30. Chemistry

You have at your lab bench the following chemicals: NaH2PO4(s), Na3PO4(s), NH4Cl(s), CH3COONa (s), 1.00 M NaOH, 1.00 M HCl, and deionized water. You also have standard glassware available. Describe how you would make 1.0 L of the buffer with a pH of 7.50

31. Physics

The atomic number of an element is determined by the number of electrons in the nucleus of the atom. True False*** The motion of electrons can be predicted precisely. True False*** Leptons are found in the nucleus of atoms. True False*** Matter can change

32. math

How do I find the volume of an oblique cone?

33. Math

Pete is folding paper for different projects. He has two triangular pieces of paper that he wants to create the same project with, but they have to be similar figures for it to work. Will Pete be able to create the same project with both pieces of paper?

34. school

Does any one have any tips on how to stay focused and be productive while homeschooling ? I am supposed to be taking a Unit review test right now but I cant make myself do it.

35. Math

You can use triangle congruence theorems to prove relationships among tangents and secants. Task 1 Four tangents are drawn from E to two concentric circles. A, B, C, and D are the points of tangency. Name as many pairs of congruent triangles as possible

36. history

Why did Bacon’s Rebellion collapse? A. The Virginia governor declared Bacon and his men rebels. B. Bacon was defeated at Jamestown. C. The English stopped consuming tobacco. D. Its leader, Nathaniel Bacon, became sick and died. again D. is my answer. :)

37. Calculus

A common inhabitant of human intestines is the bacterium Escherichia coli. A cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes. The initial population of a culture is 69 cells. (a) Find the relative growth rate.

38. Physics

Hello, I'm totally lost on how to solve this physics problem. Where/how do I insert the variables?? "Light travels from one material with a refractive index (n1=1.5) to another material with refractive index (n2=1.7). If it strikes the surface at a 45°

39. poetry

The two executioners stalk along over the knolls. Bearing two axes with heavy heads shining and wide. And a long limp two-handled saw toothed for cutting great boles. And so they approach the pound tree that bears the death-mark on its side. Jackets doffed

40. English

What kind of complement is the underlined word? After the yard sale ended, our garage looked empty. A. predicate adjective B. direct object C. indirect object D. predicate nominative Empty underline

41. math

Find the indicated term of the geometric sequence. a1 = 7, a4 = 189/8 , 8th term

42. Algbra 1

x varies directly with y and z x=1200,when y=20 and z=30. Find x when y=10 and z=20

43. writing

Assume that a new employee is taking over your job because you have been promoted. Identify a specific problem in the job that could cause difficulty for the new employee. Assume that you will need to write instructions for the employee to help him or her

44. Calculus

Find the area of the region bounded by the curves y = sin^-1(x/4) , y = 0, and x = 4 obtained by integrating with respect to y. Your work must include the definite integral and the antiderivative.

45. Calculus

A tank contains 2000 L of pure water. Brine that contains 15 g of salt per liter of water is pumped into the tank at a rate of 25 L/min. The concentration of salt after t minutes (in grams per liter) is C(t) = 15t/80 + t. As t → ∞, what does the

46. Calc

Find y'' by implicit differentiation. 5x2 + y2 = 3 y'' =?

47. Math

Solve the equation. X/4+1=-5

48. Calculus

Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.) f(x) = sqrt(x) − (1/9)x, [0, 81] c=?

49. physics

Can anyone please help me with answering this? : A person of mass 75 kg stands on a scale inside an elevator. What can you infer about the motion of the elevator if the scale reads 735N and 900N?

50. math

The marker costs 13 as much as the pen. The pen costs 13 as much as the book. The book costs 13 as much as the game. The price of the marker is what fraction of the price of the game?

51. math

23 of all your books are fiction. 16 of those are historical fiction. What fraction of all your books are historical fiction? Options: 1/9, 1/18, 1/3, 1/2

52. English

Can someone check some sentences for grammar and punctuation errors? Also, what are your hours?

53. physics

Find the force acting on a 12,500 kg F4 Phantom jet in the following situations (you will need to find the acceleration first) : 1. It is catapulted from rest to 250 km/hr in 2.2 seconds. Acceleration: (250/2.2) / 2.2 = 51.6 F = 12,500 * 51.6 = 645 645N Is

54. History

I know i've been so bothersome but this is the last question to the exam , and this exam is the last class/lesson that i'll have for the rest of the school year. I understand if you don't help me. 24. How did Congressional political gridlock during

55. English

1. Let's throw a surprise party for Henry. [What is the part of speech of 'surprise' in this sentence? A noun or an adjective?] 2. baseball field, baseball ground, baseball steadium, ballpark [Are they all the same in meaning? Which ones are frequently

56. algebra

What is the length of the hypotenuse of a right triangle if the two legs are 21 and 20?

57. Calculus

Evaluate the integral by interpreting it in terms of areas. 0 (3 +sqrt(1 − x2)) dx −1

58. geometry

The length of the small leg of a 30°-60°-90° triangle is 5. What is its perimeter?

59. physics

Can anyone please help me with this? : An electron of mass 9.11 x 10^-31 kg is accelerated by a constant force along the direction of its motion from 2 x 106 m/s to 8 x 106 m/s within 2.00 cm. What is the magnitude of the force?

60. English

Need help theirs 50 question please help me. What kind of complement is the underlined word? My father moved the plants into the greenhouse. A. indirect object B.direct object C.predicate nominative D.predicate adjective What kind of complement is the

61. Maths

Construct a parallelogram AB is 8cm ABC is 120 degrees and BC is 5cm

62. Physics

A photon a. is a quantum of light b. is a wave c. means bundle of energy(I think it's this one)

63. Micro economicstwo

Assume that the market demand and functions of the duopolies are p=140-0.6Q,TC1=7q1,TC2=0.6q2the powerof 2

64. English

Can someone check my grammar and punctuation, please?

65. Science

How does condensation on a mug compare with condensation on a metal pot after freezing then put at room temperature?

66. math

if i had to make 24 oatmeal cookies with 2/3 cup of butter, how much butter would i need to make36 oatmeal cookies

67. Calculus

Find all vertical and horizontal asymptotes of the graph of the function. (Enter your answers as a comma-separated list.) f(x) = 5 − 3x/5 + 8x

68. Calc

Consider the following. cos(x) + sqrt(y)= 1 (a) Find y' by implicit differentiation. y' = 2y^(1/2) sin(x) Correct: Your answer is correct. (b) Solve the equation explicitly for y and differentiate to get y' in terms of x. y' = ? (c) Check that your

69. Calculus

The table gives the values of a function obtained from an experiment. Use them to estimate 9 f(x) dx 3 using three equal subintervals with right endpoints, left endpoints, and midpoints. x 3 4 5 6 7 8 9 f(x) −3.5 −2.1 −0.5 0.2 0.8 1.3 1.8 (c)

70. math

Guys please i need your help i am not getting the answer over the following questions. 1) Maria banked sh. 95,000 in her bank account. If the bank gives a simple interest of 17% per year, how much will she get after 3 years? 2) If Mollel got sh. 230,000

71. Calculus

Suppose that f(5) = 3, f '(5) = 4, g(5) = −6, and g'(5) = 1. Find the following values. (a) (fg)'(5) (b) (f/g)'(5) (c) (g/f)'(5)

72. Calculus

Consider the following. cos(x) + sqrt(y)= 1 (a) Find y' by implicit differentiation. y' = Correct: Your answer is correct. (b) Solve the equation explicitly for y and differentiate to get y' in terms of x. y' = ? (c) Check that your solutions to parts (a)

73. Chemistry

For an exothermic reaction, what effect will increasing the temperature have on the equilibrium? A. There will be a shift toward the products. B. There will be a shift toward the reactants. C.There will not be a shift in equilibrium. D. Not enough

74. Math

A logarithmic function of the form f(x)= log_b x+c has an x-intercept at x= 1 and a vertical asymptote at y= 0. Also, f(x) intersects with the line y= 1 when x= 8. What is f(x)? Is it log_8 x+1?

75. math-matrices

You are given the 2x2 matrix M= (k 3) , where k is not 2. (0 2) i)Find the eigenvalues of M, and the corresponding eigenvectos. ii)Express M in the form UDU^(-1), where D is a diagonal matrix. iii)Hence find the matrix M^n.

76. Physics

Explain fully one pro and one con of nuclear energ

77. health

what chemical in your brain is most often associated with mood disorders? Is it serotonin or norepinephrine? They both can be associated with mood disorders, but which one of these neurotransmitters is the main one.

78. Math

Use integer values of x from -3 to graph the equation. y = -|x| 1. pic with 2 lines forming a v coming down from the top and ending at the origin. Very wide line. 2. pic with that image just upside down 3. pic with 3. but a thinner line range 4. Pretty

79. history

Which Roman emperor ended the persecution of Christians?

80. English

What kind of complement is the underlined word? The campers gave their leaders a signed photograph. A. indirect object B. predicate adjective C. predicate nominative D. direct object

81. mathematics

if x square +14x + k is a perfect square find k

82. Calc

Find the differential of y=ln(sqrt(4+t^2). dy=?

83. geography

In general will michigan or kansas have color weather? Why? I'm assuming Michigan but I not quite sure why? Why are place and events in Pittsburgh named three rivers? While three rivers go throughPittsburgh, but what is the significance to that?

84. Math

I need to justify how a base in a logarithmic function graph is a base. Here are the choices: The graph of f(x)= log_3 x+c must intersect with the line y= c+1 when x= 3. The graph of f(x)= log_3 x+c must intersect with the line y= c when x= 3. The graph of