# Questions Asked onApril 8, 2018

1. ## math

At midnight the temperature was 21°c. Two hours later it was 3° colder. What was the temperature then

2. ## Chemistry

Calculate molarity 9.8g r 500 ml

3. ## physics

what is the unit for translational speed? is it the same as m/s or different?

4. ## Calculus

Water leaks from a tank at the rate of r(t) gallons per hour. The rate decreased as time passed, and values of the rate at two-hour time intervals are shown in the table below. The total amount of water that leaked out is evaluated by a Riemann sum. Find

5. ## physics

What does Vcm mean?

6. ## physics

If you dropped the ball, cylinder and the ring at the same time from a height of 6.35 cm, in what order would the hit the ground?

7. ## Math

The values of 4+(1/4+(1/4+1/4+..upto infinity... I don't know how to type that fraction . I have taken a photo and uploaded here. ibb[dot]co/fLqhxH Please help me in solving

8. ## Science

A label on a 500ml Dettol bottle,indicated chloroxylenol is 4.8g/100ml.his many molecules of chloroxylenol are in 25cm3of dettol?

9. ## math

How many rectangles can you find with an area of 32?

10. ## Math, Finanace

Your annual salary 12 years ago was \$14,500; it is now \$25,000. What is the average annual rate of increase?

11. ## Inverse trigonometry

Solve the equation tan^-1(under rootx^2+x)+sin^-1(under rootx^2+x+1)=pi/2 Where tan^-1 inverse of tan

12. ## Chem - Redox rxn

Just wanna make sure, if i did it correct or not. Cl2 + 2NaBr --> Br2 + 2NaCl (0)---(+1)--(-1)---(0)------(+1)(-1) So Cl2 loss = oxidation Br2 Gain = Reduction Am I correct ? Thanks

13. ## Science

1.How much heat is absorbed by a 63g iron skillet when its temperature rises from 12oC to 30oC? 2.How much heat is needed to raise the temperature of 5g of water by 15oC?

14. ## Inverse trigonometry

Prove that- tan^-1(1/2tan 2A)+tan^-1(cotA)+tan^-1(cot^3A) ={0,ifpi/4

Troy juth wants to purchase new dive equipment for Underwater connection, his retail store in Colorado springs. He was offered a \$62,000 At 6% for 72 months. What's is his monthly payment by formula?

16. ## chemistry

a student accidentally mixed sodium carbonate an calcium carbonate. state how he would obtain pure sodium carbonate from the mixture

17. ## Science

I'm something really important for without me you cannot enjoy slumber and stay stranded wherever you are. It's easy to find me if you know the hottest place of your parents' abode.

18. ## Science

Plz help me plot on graph and also the solution. Q. When velocity is 20 m/s time is 0 and velocity 20 m/s time is 5 sec, velocity 10 m/sec time 7 sec, velocity 20 m/sec time 10 sec and velocity 0 time 15 sec. Calculate total distance showing each step and

19. ## Finance Math

1. Your average daily balance on your charge card for the month of July is \$855.28. If your card carries an annual interest rate of 15.4%, what will your finance charge be for July? 2. You buy a car from your neighbor at a price of \$9,000. You pay \$500

20. ## MATH

ratio of rate of diffusion of O2 and CH4

21. ## Math

A parabola has intercepts of x = -2, x = 3, and y = -4 how do I write this into these forms: the intercept form (y = a (x – m)(x – n)) and in standard (y = ax2 + bx + c) form

22. ## math

the moon travels about 1.42 * 10^7 meters of its orbit in one twenty-four hour period. which of the following is the most reasonable estimate for the distance the moon travels around the earth in 27 days?

23. ## Geometry

A cone with a radius of 3 cm, and a volume of 900cm. The height is 95.493cm? how is the volume affected if the height is doubled, and how is it affected if the radius is doubled?

24. ## Algebra

x + 3y = 3 true or false? (9, -2) is a solution for this function

25. ## Math

Residents of a small city voted on whether to allow a developer to build a shopping center. The number of voters in favor of the shopping center was 4,400. The number of voters against the shopping center was 17,600. What percent of voters were in favor of

26. ## math

Find the area of the figure. Round to the nearest tenth if necessary. T(-1,8), U(3,5), V(4,0), R(-3,0), S(-3,5)

27. ## math

Find the area of the figure. Round to the nearest tenth if necessary. D(0,2), E(4, -2), F(8,2) instead of d and f connecting with a straight line, they are connected with half a circle/curve The highest point this semicircle part reaches is (4,6)...if im

28. ## Math

What is the solution set for the quadratic equation x^2 + 6x = -5? I’m honestly confused and don’t know what to do. I don’t think the answer could be F {1} or J {-5} because it says sets. Which leaves me with G {-1,-5} and H{1,5}. Help?

29. ## math

kevin correctly answered 75% of 32 questions . how many questions did kevin answer correclty

30. ## debate with former classmate about teaching

What percentage of teachers in the U.S.A. live above versus below federal poverty line?

31. ## Math/Algebra

The equation ​ yˆ=−6.2x2+41.5x−5.6 ​ approximates the average number of cars that pass through an intersection x hours after 3:00 p.m. What is the best estimate for the average number of cars that pass through the intersection at 5:30 p.m.? a. 35

32. ## Math/Algebra

On Dolphin Beach, the high tide is 2.2 meters and only occurs at 12 a.m. and 12 p.m. The low tide is 1 meter and only occurs at 6 a.m. and 6 p.m. Which function models the height of the tide t hours after 12 a.m.? a. h(t)=0.6cos(πt/6)+1.6* b.

33. ## Math/Algebra

Let p(x)=90/9+50e ^ −x . What is p(5) ?

34. ## Math/Algebra

The graph of f(x)=sin(x) is transformed into a new function, g(x) , by compressing it vertically by a factor of 1/2 and shifting it 3 units down. What is the equation of the new function g(x) ?

35. ## math

Please people i need your help whoever knows# Mrs Ally went to the market with sh.10,000 to buy the following items; 5 kg of rice @ sh. 600, 2 kg of meat @ sh. 2000, 2 heaps of onions @ sh. 150, 2 kg of sardines @ sh.700 and bus fare sh. 300 @ journey. How

36. ## math

.The graph of f(x)=cos(x) is transformed to a new function, g(x) , by stretching it horizontally by a factor of 4 and shifting it 1 unit up. What is the equation of the new function g(x) ?

37. ## math

.In the function f(x), x is replaced with 2x and 1 is added to the function. f(x)=−3sinx What effect does this have on the graph of the function? a. The graph is horizontally compressed by a factor of 2 and shifts up 1 unit b. The graph is horizontally

38. ## math

.Over a 24-hour period, the temperature in a town can be modeled by one period of a sinusoidal function. The temperature measures 70°F in the morning, rises to a high of 80°F, falls to a low of 60°F, and then rises to 70°F by the next morning. What is

39. ## PSHE

Write a 500 word essay on "What is something that you find fascinating and interested in exploring?"

40. ## Algebra I

Simplify -11 the square root of 112

41. ## Algebra I

Simplify the square root of 363 - 3 the square root of 27

42. ## Math

f(x)=-2sqrt{-x+4} find f-1(x), restricting its domain so that f(x) is truly its inverse.

43. ## Math

Write a sine equation to represent y=-2cos(4x-pi)+2

44. ## Math

Mark borrowed \$200 at 12% compound interest for two years. If he makes no payments. How much interest will he owe at the end of the second year? A \$48.00 B \$50.88 C \$26.88 D \$24.00***

45. ## Geomtry

The border of a square game board is 3 inches wider than the main board. The total area of the game board is 196 in.^2 what are the dimensions of the game board and the main board?

46. ## Math

Solve for theta: cos2theta=1/2

47. ## Algebra I

What are the domain and range of the function y= 2 the square root of (3x+4) - 5

48. ## Calculus

Solve for x: 64^x * 8^(2x-1) = 16^(x-1)

49. ## Chemistry

CH4 + Cl2 → CH4Cl + HCl Is this a double replacement reaction? I believe it is but am not entirely sure.

50. ## Finance Math

Jennifer just turned 23 and can save \$500 per quarter, starting in three months. If Jennifer can earn 7% compounded quarterly, what age will she be when she accumulates \$1,000,000?

51. ## Finance Math

In 4 years, your son will be entering college and you would like to help financially. You decide to create a college fund and make four annual deposits, starting now. In four years, you would like your son to be able to make four annual withdrawals of

52. ## University Orgo Chem EMERGENCY

How can we add a methoxy group to a benzoic acid? At the meta position. My thought process: Use friedel craft alkylation and add a CHO and then convert to hydroxyl and use CH3-I to get methoxy, but then theres an extra carbon at the meta position...

53. ## math

Is tan(90-theta) the same as tan(theta)???

54. ## chemistry

When 100ml of Hg(NO3)2 (aq) fully reacted with Na2S (s), 1g of HgS was producted. In this situation, how much is the molarity of Hg(NO3)??

55. ## math

Owen and Ethan have \$175 together. How much money does each of them have if Ethan has \$33 more than Owen?

56. ## Algebra

with the polynomial: 2x^2 + 7x - 15 = 0 do these apply? There are 2 real roots. There are 2 irrational roots.

57. ## Financial math

A five-year loan of \$25,000 at 7.2% compounded quarterly requires quarterly payments. (Round your answer to 2 decimal places.) a. Calculate the interest component of Payment 10. Interest component \$ b. Calculate the principal component of Payment 13.

58. ## English

What do you think the title, "The Great Gatsby," means? Is Gatsby “great”? Why or why not?

59. ## Math

Select all possible values for x in the equation. x cubed=375. 5*the cubed root of 3 the cubed root of 375 75*the cubed root of 5 125*the cubed root of 3 I am trying to do a practice test to prepare for my real test tomorrow and I don't understand the

60. ## social studies

The first European colony in the Americas to gain independence was? A) Mexico B)Cuba C)Haiti D)Brazil I think B Thanks

61. ## science

Write the chemical formula for cornstarch + heat = Dextrin + water. I know that the formula for cornstarch is C27H48O20 The formula for Dextrin is C6H10O5. I also have to balance the equation

62. ## Chemistry

At 65C,a sample of ammonia gas exerts a pressure of 10.2 atm..Calculate the pressure when the volume of gas is reduced to one tenth of the original value at the same temperature.Assume ammonia gas is an ideal gas

63. ## MATH- APR of a loan

The owner of an automobile repair center purchased new electronic diagnostic equipment for \$12,000. He paid down and then paid 60 monthly payments of \$242.81. Determine the APR of the loan to the nearest one-half of a percent.

64. ## Finance Math

You buy furniture for \$700. The retailer finances the entire amount for one year and says you will be charged 9% interest. The retailer uses the add-on method. Assuming your first monthly payment is due in one month, calculate the real annual rate you will

66. ## History

Which identifies an argument that the Nazis used to claim that the Weimar government was weak? the weimar government followed a democratic process to govern. the weimar government refused to pay any of its war reparations. the weimar government formed a

67. ## Physics

The critical angle is the angle at which a ray of light is no longer refracted but completely reflected. True False

68. ## Physics

If light travels through a medium at a speed of 1.987 x 10^8 m/s, what is the index of refraction of the medium? * 1.33 1.36 1.51 1.53

69. ## Physics

A ray of light perpendicular to a medium produces a refracted ray measuring 45º. * True False

70. ## Calculus

In the case of a decreasing, concave down parabola in the intervals 0 to 1 with all of the y values positive, would the actual area be less or more than the estimated area using the trapezoid rule? And would it be less or more than using the midpoint rule?

71. ## Physics

A ray of light perpendicular to a medium produces a refracted ray measuring 45º. * True False

72. ## ELA

Jason was looking for a tangible reward for his excellent job performance a. able to be created b. able to be located c. able to be touched**** d. able to be preserved

73. ## politics

1.The elites in a society: a.are those with college degrees. b.must be locally elected officials. c.are software designers and computer engineers. d.are the people who get a disproportionately large part of the society's valued resources. D ?

74. ## politics

2.Which of the following was not an influence on the Framers? a.Plato's Republic b.the Magna Carta c.John Locke's Second Treatise on Government d.the Mayflower Compact A?

75. ## Math

If r = 3, p = 4, and m = 2, what is g? m^2 = ^8sqrt rp/g^2

76. ## politics

3.The Federalists favored a __________ central government to curb the power of the common people and of the states. a.stronger b.weaker c.neutral d.none of the above A?

77. ## politics

5.These rights have been extended to state criminal trials and to other settings, such as educational and social service hearings. a.Rights of Free Speech b.Civil Rights c.Due Process Rights d.Civil Liberties C?

78. ## politics

6.The number of total congressional employees is close to: a.35000 b.5000 c.25000 d.15000 D?

79. ## politics

7.The case of __________ helped to reinforce the doctrine of "national supremacy." a.Plessy v. Ferguson b.McCullough v. Maryland c.Marbury v. Madison d.Dred Scott v. Sandford B?

80. ## politics

8.Among major American metropolitan areas, only __________ has three separately owned daily newspapers. a.New York City b.Chicago c.San Francisco d.Boston A?

81. ## politics

9.Use of the Internet for grassroots organizing, political commentary, and fund-raising has become a standard due to developments in the __________ presidential campaigns. a.1996 b..2000 c.2004 d.2008 A?

82. ## politics

10.In the pluralist model, bargaining among groups is carried on by: a.one leader. b.few leaders. c.many leaders. d.voting. B?

83. ## chemistry

Fe(OH)3 = Fe(OH)2 + H2O2 What is the oxidizer and reducer? Is the oxidizer Fe(OH)3 I'm know sure about the reducer

84. ## chemistry

does a higher amount of activation energy mean a reaction will be spontaneous? What about a lower ?