# Questions Asked onApril 25, 2015

1. ## Economics

17. The current price for a good is \$20, and 100 units are demanded at that price. The price elasticity of demand for the good is -1. When the price of the good drops by 10% to \$18, consumer surplus: Increases or decreases by \$__?

2. ## calculus

A water tank has the shape of an inverted right circular cone with base radius 3 meters and height 6 meters. Water is being pumped into the tank at the rate of 12 meters3/sec. Find the rate, in meters/sec, at which the water level is rising when the water

3. ## trigonometry pls help

12. Vance is designing a garden in the shape of an isosceles triangle. The base of the garden is 36 feet long. The function models the height of the triangular garden. a. What is the height of the triangle when theta=45 degree? b. What is the height of the

4. ## Math

What is the 1st quartile of the following data set? 2745,257,301,218,265242,201 a-201 b-218 c-257 d-270 my answer would be 28 because 201 would be the minimum.

5. ## math

The data in the table are linear. Use the table to find the slope. X| 2| 4| 6| 8 Y| 1|-2|-5|-8 A. 3/2 B. -3/2 C. -2/3 D. 2/3 Please help me work this out I don't know how to do this kind of stuff. Thank you in advance.

6. ## english

I'm writing a speech about a mythical character/legendary hero that i admire what are the reasons why i admire him or her that i could write about? thanks in advance.

7. ## Microecon

Juan mows lawns in his neighborhood for extra money. Suppose the demand for lawn mowing in Joe’s neighborhood is: QD = 48 – 2P and that the supply of lawn mowing (Juan’s willingness to mow lawns) is: Qs = -12 + P. The market-clearing price of lawn

8. ## Economics

Elesha babysits on the weekends for extra money. Suppose that three neighbors with children are interested in paying Elesha to babysit their children. In particular, Dr. and Mrs. Brown would be willing to pay \$30 to have Elesha babysit their children, Mrs.

9. ## Chemistry 2

For the gaseous reaction of carbon monoxide and chlorine to form phosgene, (COCl2), calculate each of the following. (a) Calculate S° at 298 K I got -136.76 J/K using delta S = sum of delta S of products minus sum of delta S of reactants which is the

10. ## introduction to computer applications

how is a simulation different from a learning game?

11. ## trigonometry pls help

Howard is flying a kite and wants to find its angle of elevation. The string on the kite is 32 meters long and the kite is level with the top of a building that he knows is 28 meters high. To the nearest tenth of a degree, find the angle of elevation. Show

12. ## trigonometry pls help

Vance is designing a garden in the shape of an isosceles triangle. The base of the garden is 36 feet long. The function y=18 tan theta models the height of the triangular garden. a. What is the height of the triangle when theta=45 degree? b. What is the

13. ## Masinde university

Compare the lattice energy of BaCl2 and CsCl

14. ## Civics

10. Which of these statements about the Cuban Missile Crisis is true? A. President Kennedy removed nuclear missiles from Turkey to resolve the crisis. B. Fidel Castro's government had manufactured guided missiles. C. President Kennedy called Nikita

15. ## Calculus

A particle moves along the curve y = 3x2 + 1 in such a way that the y value is increasing at the rate of 3 units per second. At what rate is x changing when x = 2?

A group of 4 rail cars with a total mass of 50,000kg moves at 3m/s at a stationary locomotives that has a mass of 10,000kg. What is the speed of the whole train after the cars connect with the locomotive? F=ma 50,000kg*3m/s= 150,000kg m/s 150,000kg m/s

17. ## government LSN

how do politicians and interest groups use the media to persuade Americans

18. ## government

most important item a candidate needs to wage a succesful campaign

19. ## Spanish 3 Homework.

El pronombre que se usa en lugar de "Aquel gato es bonito" es: aquél es bonito. True or false? ***true El pronombre que se usa en lugar de "Ese cantante es muy popular" es: Ése cantante es muy popular. True or false? ***true Am I correct? Thanks!!

20. ## Math

You want to find out what the favorite hot lunch in the school cafeteria is among the high school students. At an assembly for the whole school, you decide to survey all students who are sitting on the end of their rows in the auditorium. What type of

21. ## Physics

A car drives at a speed of 28m/s along a road parallel to a railroad track. A train traveling at 15m/s sounds a horn that vibrates at 300 Hz. If the train and car are moving toward each other, what frequency of sound is heard by a person in the car? If the

a gun converts 200J of stored energy into kinetic energy of the 0.02kg bullet. a)What is the speed of the bullet as it leaves the gun? b)If the gun is fired straight up, how high will the bullet go? a)200J b)m*g*h= (0.02kg)(10m/s^2)=200J h=100m

23. ## physical

A solid of R.D. 4.2, is found to weigh 0.200kgf in air Find its apparent weight in water

24. ## Math

1. cos theta = 0.2 for 270 degrees

25. ## Civics

1. A basic position in American foreign policy has been that America must defend its foreign interests related to trade and security. The main foreign policy position opposed to this American policy is called A. imperialism. B. militarism. C. isolationism.

26. ## Science

How much force is exerted to lift 750 kg of water in the well against the force of gravity? How much work is done to lift this water .05m? How does this compart to the work done byt he man in the treadmill?

A 25 gram arrow fired from a bow has a speed of 80m/s. The energy in the arrow came from work done by the bow that acted over a 1m "draw" distance. What average force acted on the arrow over this distance mass=0.025kg speed=80m/s avg force 2N

28. ## Public Speaking

The speaker is the ____________ of the message. A. decoder B. encoder C. transmitter D. channel It's not C

29. ## Physics

The temperature of a 1 m long aluminum rod is 20° C. If the temperature is increased to 70° C, what is the length of the rod? The coefficient of linear expansion for aluminum is 16 * 10^-6 /(degrees)C Please help I can not get this.

30. ## physics

A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x =5sin πt + π 3( ). The velocity of the body at t = 1.0 s is (-8 m sec )

31. ## Math

Solve each equation for 0

32. ## CHEMISTRY

question 1.Explain why fructose and alpha-hydroxyketose reacts with benediict’s solution. what structural arrangement is necessary for the reaction to occur? question 2. When aldose react with Barfoed reagent what type of organic compound forms. What

A car can brake to a stop from 60mph in 2.6 seconds. If the car has a weight of 3225 lbs, what force in Newton's acts on the car. F=ma, vt=v0+at, a=(vt-v0)/t=(0-60mph)/2.6s=-23.1m/s^2 3225 lbs=1462.84 kg thus F=1462.84kg*(-23.1m/s^2)=-63.3N

34. ## statistics

IQ scores distribution of IQ scores is not normally distributed standard with a mean of 100 and a standard deviation of 15, which is represented by a bell-shaped graphical. What is the area under the curve? What is the median? What is the mode?

35. ## statistics

IQ scores distribution of IQ scores is normally distributed standard with a mean of 100 and a standard deviation of 15, which is represented by a bell-shaped graphical. What is the area under the curve? What is the median? What is the mode?

36. ## physics

The figure above shows a chain being held on a table with one quarter of its length hanging over the edge. Friction is negligible. The chain has length L = 24 cm and mass m = 0.012 kg. Calculate how much work is required to pull the hanging section back

A group of shoe manufacturers in the United State, Japan, Germany, and England have pooled resources to gain a larger market. What is this arrangement called?

38. ## phy113

Mass of gas is 300 gm and its specific heat at constant volume is 750 J/kg K. if gas is heated through 75°C at constant pressure of 105 N/{m^2}, it expands by volume

39. ## math

The length of a rectangular piece of cardboard is three more than twice the width. A square 2 cm on a side is cut out of each corner. The sides are folded up to form an open box. if the volume of the box is 120cm^3, what were the original dimensions of the

40. ## Math

in order to find out what the best restaurant is in town you call 25 of your friends at random. what type of survey is this? a- biased b-random c-systematic d-stratified my answer is biased because you may pick at random but they are all still your

41. ## STATISTICS

IQ scores distribution of IQ scores is normally distributed standard with a mean of 100 and a standard deviation of 15, which is represented by a bell-shaped graphical. What is the area under the curve? What is the median? What is the mode?

42. ## Public Speaking

President Obama addressing the recent graduates in a commencement exercise is an example of __________ communication. A. group B. mass C. interpersonal D. public It's not A

43. ## Public Speaking

Interpreting during the listening process is the same as: A. encoding. B. receiving. C. decoding. D. responding. It's not C

44. ## math

The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges \$ 4696 to rent trucks plus an additional fee of \$ 225.50 for each ton of sugar. The second company charges \$ 5500 to rent trucks plus an

45. ## education

Just want to know what these questions are asking for. thanks What view do you have of the children's skills and competencies? In what ways do you need to transform your view of children to see them in a more positive light? what skills do you want to

46. ## Statistics

If a pair of dice (one red; the other blue) are rolled, Find the probability of landing on a sum of 9

47. ## Science-Physics

From what height was a brick dropped if it hit the ground with a speed of 4.3 m/s?

48. ## Physics

A sports car with a very powerful engine driving on a surface with a coefficient of static friction µs = 0.8 wants to accelerate from a stop to 100 km/hr. (You may neglect air resistance.) a) What is the fastest that the car can accomplish this? b) How

49. ## physics

Which of the following is the correct unit of k in the equation of a damped harmonic oscillator given as , where b is the damping factor and all the symbols have their usual meaning? 2 If s is distance and t is time, what must be the dimensions of a and b

50. ## Physics

In an empty rubber raft the pressure is approximately constant. You push on a large air pump that pushes 1.0 L(1.0× 10^−3m3) of air into the raft. You exert a 17N force while pushing the pump handle 3.0×10^−2m . Determine the work done on the gas. If

51. ## physics133

1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat gained by the cold body

52. ## government LSN

what is the difference between urban sprawl and smart growth??

53. ## social studies

What are some examples when world history gives you the understanding of the world and how societies have impact on each other.

54. ## Math

Determine the simple interest p=6742.75,6.05%, t=90 days

55. ## Calculus

Given f(x)=x^2-27x-28, find the largest integer in shich f is decreasing.

56. ## Math

The plane P1 has equation r = (2,1,1)+lambda(-2,1,8)+mu(1,-3,-9) The plane P2 has equation r = (2,0,1)+s(1,2,1)+t(1,1,1) Show that for points that lie on P1 and P2, lambda=mu I have no idea how to start... help! Thanks!

57. ## Public Speaking

Transmission of messages in a communication is: A. a one-way street. B. a two-way street. C. only through a medium. D. any which way. It's not A

58. ## physics

a mass of 9.6 kg is moving horizontally as a force of 2.3 N , directed at 21° below the horizontal , is exerted on it , when the speed is 7.9 m/s, what is the rate at which the force is doing work

59. ## Physics

A 4 kg block is placed on an incline at an angle of 30 degrees. If the coefficient of static friction is 0.3 and the coefficient of kinetic friction is 0.2 what is the net force on the block?

60. ## Pre-Calculus

Two hoses together fill a pool in 2 h. If only hose A is used, the pool fills in 3 h. How long would it take to fill the pool if only hose B were used? I multiplied 3 and 2 and got 6 hours. Is this a valid method? Thanks

61. ## Calculus 2

Use the Comparison Test to determine whether the series is convergent or divergent. On top of the summation sign (∑) is infinity. Under the summation sign is n=1, and right next to it (to the right of ∑ sign) is cos^2n/n^2. How would I compare them and

62. ## Physics Capacitance

Three uncharged capacitors, X, Y, Z, each with capacitance of 12uF each are connected A---------[X]------[Y/Z]-----------B *Y&Z is parallel to each other* A potential difference of 9.0V is applied between points A and B. Explain why when the potential

63. ## algebra

√6(5-√6)+2√6 simplify the expression

64. ## geometry

I sent question about rt triangle, ABC, needing to find a & b. altitude was 4, base a and hypotenuse b. You mentioned knowing another angle. There is one < A is 45 degrees. Thanks for all your help. Math is not an easy subject for me.

65. ## Chemistry

Need some direction.. where do I start? Vinegar is a 5% (mass/mass) solution of acetic acid in water. If vinegar has a density of 1.06 g/mL, what is the concentration in molar?

66. ## government

what do candidates do in an electoral campaign

67. ## math

Can someone please explain this problem Find the general solution to the linear system of differential equations. x'1 x'2 x'3 = −4 −4 5 0 −4 4 0 4 2 x1 x2 x3

68. ## math

Solve each equation for 0

69. ## Precalcus

Suppose that 10 grams of carbon ( 14C )is released in a nuclear energy plant accident. How long will it take for the 10 gramto decay to 1 gram?

70. ## chem

Please explain: 1) if MnO2 when in a fast reaction with H2O2 appear in balanced equation and 2)purpose of manganese dioxide. Thanks

71. ## analytical chemistry

Consider a general reaction where a ligand L and a metal ion Mn+ form a complex with m number of ligands (L) coordinated to each metal ions. Assume the metal is colorless. The ligand and metal solutions were mixed at molar fractions (and same total molar

72. ## math

Solve each equation for 0

73. ## phyiscs

Consider a hypothetical situation, where your friend suggests leaving the refrigerator door open to help cool the house on a hot summer day. Discuss what will happen to the temperature of the room. Will it decrease, increase, or stay the same and why

74. ## POL

In federalism, the national government (Points : 1) is subordinate to the states. shares power and authority with the states. can force the states to do what it wants. can choose the states’ governing officials.

75. ## English?

I Am Green I Sip Tea What Am I Can someone answer this riddle it has 6 letters, 2 words --- ---

76. ## physics

a car moving with an initial velocity of 24m/s comes to a hault in 6s .calulate the distance travelled by the car as it comes to rest

77. ## Econ

I think it is A & C, but am not sure.. In a perfectly competitive market in which no market failure occurs and no government policy interferes with the equilibrium price and quantity: a. deadweight loss is zero b. the sum of producer and consumer surplus

78. ## Calculus

A circle has a radius lf 10/(pi-1) which is the same value as the side of a square. Both the radius of the circle and the side of the square are gowing at 1 in/sec. Find the difference between the rates of change of their area in in/sec.

79. ## algebra

use each number once to form three proportions. 1,2,10,4,12,20 15,5,16,6,8,3

80. ## math geography and business studies

what can i study in university

81. ## maths

Natalie bought 2 bags and 3 times as many pouches. She spent a total of \$368. Each bah cost \$24 more than a pouch. How much did 1 pouch cost?

82. ## math

The ratio of number of \$5 notes to the number of \$10 notes that Ryan has was 4:3. After Ryan spent \$140 worth of 5\$ notes and 2/5 of \$10 notes, the ratio became 2:3. What was the value of the \$5 notes Ryan had at first?

83. ## government

unemployment rate is a measure of

84. ## latin culture

pilsen is a large hispanic community in chicago whose residents are mostly mexican american. true or false

85. ## maths

Natalie bought 2 bags and 3 times as many pouches. She spent a total of \$568. Each bag cost \$24 more than a pouch. How much did 1 pouch cost?