# keith

Popular questions and responses by keith
1. ## Microeconomics

Answer the following questions based on the graph that represents J.R.'s demand for ribs per week of ribs at Judy's rib shack. a. At the equilibrium price, how many ribs would J.R. be willing to purchase? b. How much is J.R. willing to pay for 20 ribs? c.

2. ## KIPP Believe

The student-to-faculty ratio at a small college is 17:3. The total of students and faculty is 740. How many faculty members are there at the college? How many student?

3. ## Math Help

In a certain state, each automobile license plate number consists of two letters followed by a four-digit number. To avoid confusion between "O" and zero and between "I" and one, the letters "O" and "I" are not used. How many distinct license plates can be

4. ## Chemistry II

Liquid sodium can be used as a heat transfer fluid. It's vapor pressure is 40.0 torr @ 633 degrees C and 400.0 torr @ 823 degreees C. Calculate it's heat vaporization.

5. ## Algebra

Find the missing term of the arithmetic sequence 24, __, 36, ... A. 34 B. 30 C. 42 D. 20

6. ## english

17. In Shirley Jackson’s “The Lottery,” how does the author use Tessie’s late arrival to help create suspense? (1 point) A The reader does not know what event Tessie has arrived late for. B The reader knows that the townspeople are aware of

7. ## English

CHECK MY ANSWERS, I NEED to 100% 1. Choose the word that best defines the italicized word. The rescue workers discovered the dog (cowering) in the closet. A - barking B - cringing (my answer) C - dying D - sleeping 2. Read these lines from Robert Burn’s

8. ## math

Aislyn decides to research attendance at sporting events for her project. She finds data on average attendance per game at San Diego Chargers (CA) football games and at Dallas Cowboy (TX) football games. The table shows the average attendance for each team

9. ## College Algebra

If a person is 66 inches tall is standing 15 feet away from a streetlight. If the person casts a shadow 84 inches long, how tall is the streetlight?

10. ## Chemistry

Gasohol contains ethanol (C2H4OH)(l), which when burned reacts with oxygen to produce CO2(g) and H2O(g). How much heat is released when 12.5g of ethanol burns? C2H5OH(l) + 3 O2(g) --> 2 CO2(g) + 3H2O(l) Delta H = -1368kJ

11. ## Chemistry

The reaction of flourine with ammonia produces dinitrogen tetrafluoride and hydrogen fluoride. 5F2(g) + 2NH3(g) ==> N2F4(g) + 6HF(g) a)If you have 66.6 g NH3, how many grams of F2 are required for complete reaction? b)How many grams of NH3 are required to

12. ## Chemistry

what do limiting reagents have to do with... 5F2(g) + 2NH3(g) ==> N2F4(g) + 6HF(g) a)If you have 66.6 g NH3, how many grams of F2 are required for complete reaction? b)How many grams of NH3 are required to produce 4.65g HF? c)How many grams of N2F4 can be

13. ## Math

A car dealership employs 12 salesman and 28 mechanics. What is the ratio of salesman to mechanics?

14. ## Science

1.what term best describes the measure of the increase in the concentration of a product per unit time? A)activation energy B)kinetics C)reaction rate D)reaction time 2. In the following equation, which of the reactants that is a bronsted-lowry acid

15. ## Trigonometry

A dancer completes 3.2 revolutions in a pirouette. What is her angular displacement?

16. ## trig

Because of prevailing winds, a tree grew so that it was leaning 4 degrees from the vertical. At a point, 35 meters from the tree, the angle of elevation to the top of the tree is 23 degrees. Find the height h of the tree

17. ## College physics

Gun sights are adjusted to aim high to compensate for the effect of gravity, effectively making the gun accurate only for a specific range. (a) If a gun is sighted to hit targets that are at the same height as the gun and 100.0 m away, how low will the

18. ## Basic Statistics

The Suva Energy Information Administration reported that 51.7% of homes in Sunnyville were heated by natural gas. A random sample of 200 homes found that 115 were heated by natural gas. Does the evidence supports the claim, or has the percentage changed?

19. ## Chemistry

The complex ions of Zn2+ are colorless. Why? Keith, Natali, Cindy, Joel, or whoever, Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a

20. ## algebra

The fraction of men in a population who are married is 2/3. The fraction of women in the population who are married is 3/5. What fraction of the population is single?

21. ## physics

A 0.40 kg mass is attached to a spring with force constant 26 N/m and released from rest at a distance of 3.2 cm from the equilibrium position Use conservation of energy to find the speed of the spring when it is halfway to the equilibrium position Find

22. ## Trigonometry

rectangular form to polar form xy=12 rsinÆŸ rcosÆŸ=12 would the answer be: r^2=12/cosÆŸ sinÆŸ please show steps, Thanks

23. ## Chemistry

What is the percent yield if 4.65g of copper is produced when 1.87g of aluminum reacts with an excess of copper(II) sulfate? 2Al(s)+3CuSO4(aq)==>Al2(SO4)3(aq)+3Cu(s)

24. ## physics

A beaker of mass mb containing oil of mass m1 and density ρ1 rests on a scale. A block of iron of mass m2 and density ρ2 is suspended from a spring scale and completely submerged in the oil. Determine the equilibrium readings of both scales. (Use rho_1

Which of the following is an alternative to the bureaucratic paradigm? A. An organization is defined by the resources it controls B> An organization sticks to routine and focuses on its own needs C. An organization empowers front line employees D. An

Why are mandates such a cause of friction in intergovernmental relations? This is an essay question I am working on and am stuck as to some of the major points to highlight. Any assistance would be appreciated in getting me started.

27. ## L.O

Name, in full three(3) institutions which deal with human rights violations

28. ## Algebra

What is the period of the function? y=4 cos pi x A. 1 B. 2 C. pi D. 2pi

29. ## Algebra

Suppose you drop a tennis ball from a height of 9 feet. After the ball hits the floor, it rebounds to 80% of its previous height. How high will the ball rebound after its third bounce? Round to the nearest tenth. A. 5.8 feet B. 1 feet C. 4.6 feet D. 7.2

30. ## English

16. What is the effect of the author’s use of assonance in the following line from “The Raven?” “For the rare and radiant maiden whom the angels name Lenore—” (1 point) A It creates emphasis on Lenore. B It explains Lenore’s appearance. C It

31. ## math

Alternate exterior angles are always ?

32. ## physics

A turntable must spin at 33.7 rpm (3.53 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 1.5 revolutions, starting from rest? The turntable is a uniform disk of

33. ## physics

You are asked to hang a uniform beam and sign using a cable that has a breaking strength of 372 N. The store owner desires that it hang out over the sidewalk as shown. The sign has a weight of 248 N and the beam's weight is 49 N. The beam's length is 1.30

34. ## Physics

A house painter stands 3 m above the ground on a 5.3-m-long ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 638 N and the ladder weighs 143 N. Assuming no friction between the house and the upper end of the ladder,

35. ## chemistry

you are given an unknown gaseous binary compound. when 10.0g of the compound isburned in excess oxygen, 16.3g of water is produced. the compound has 1.38 times that of oxygen gas at the same conditions of temperature and pressure. give a possible identity

36. ## microeconomics

Immigration is a major topic of concern in today’s economy. What are the possible problems and solutions for these concerns? What could happen to the U.S. labor markets if immigration is not controlled?

37. ## physics

a girl throws a ball vertically upwards at 5m/s from the roof of a building 20m high how long will it take the ball to reach the ground? and what will its speed be when it strikes the ground

38. ## government

The President's power to veto congressional legislation and the requirement that Congress confirm the President's nominees to the Supreme Court are both examples of what?

39. ## calculus

At what values of x does the function f(x)= x(x-4)^4 have a horizontal tangent line?

40. ## math

At what values of x does the function f(x)= x(x-4)^4 have a horizontal tangent line?

41. ## Physics

A skydiver has a terminal velocity of 9.0 m/s. If they have a mass of 98, what is their k value for their air resistance? Use g = 10 m/s/s and do not report units on your answer, they should be N s/m.

42. ## pre calc

solve following using "elimination method" 3x^2 + 4y = 17 2x^2 + 5y = 12

44. ## algebra 2

Why is a stick of gum like a sneeze?

45. ## Physics

A police car is traveling east at 40.0 m/s along a straight road, overtaking a car ahead of it moving east at 30.0 m/s. The police car has a malfunctioning siren that is stuck at 992 Hz. What is the wavelength behind the police car in meters?

46. ## physics

A beaker of mass mb containing oil of mass m1 and density ρ1 rests on a scale. A block of iron of mass m2 and density ρ2 is suspended from a spring scale and completely submerged in the oil. Determine the equilibrium readings of both scales. (Use rho_1

47. ## social studies

why was the cotton gin important

Hi, I would like some assistance with this question. I am stuck between answers C and D. Both appear correct to me. D because I know Strategic Management is about attaining ALL of your objectives Strategic Management is about A. Attaining part of your

Whay are federal grant programs so important to state and local governments? This is another essay question I am workming on and am stuck as to where to begin. If you could help with some highlights or pointers I would greatly appreciate it. This course is

50. ## Social studies

During the 20th century, relations between Muslims and Hindus: A. Grew wider apart B. Grew closer together due to Indian Nationalism C. Became the primary focus of British diplomacy D. Had suprisingly resulted in little bloodshed.

51. ## social studies

what factor did not contribute to the conquest of the Aztecs in the early 16th century? A. The spread of European diseases B. The technological and cultural weakness of the Aztec state C. Alliances with other indigineous forces D. Religious beliefs among

52. ## Electrochem

An electrolytic cell produces aluminum from Al2O3 at the rate of ten kilograms a day. Assuming a yield of 100% a) how many moles of electrons must pass through the cell in one day? b) how many amperes are passing through the cell? c) how many moles of

53. ## Electrochem

A baby's spoon with an area of 6.25 cm^2 is plated with silver from AgNO3 using a current of 2.00 A for two hours and 25 minutes. a) If the current efficiency is 82.0%, how many grams of silver are plated? b) What is the thickness of the silver plate

54. ## Electrochemistry

I have an electrochem based question. I'm trying to solve for E* based on a chart in my book. I know the equation for solving this is E*= E*ox + E*red. The chart in my book gives a list of reactions and a E*red value. My teacher told us that the greater,

55. ## chem

In a solution at constant H+ concentration, iodide ions react with hydrogen peroxide to produce iodine. H+ + I- + 1/2H2O2 --> 1/2I2(aq) + H2O The reaction rate can be followed by monitoring the appearance of I2. The following data were obtained:

56. ## Chemistry

1.a radioscope which is neutron poor and very heavy is most likely to decay by? alpha , beta, electron capture, positron emission 2. When a 235-U nucleus is struck by a thermal neutron, fission occurs often with the release of neutrons. If fission

57. ## chemistry

Which element is obtained primarily from the distillation of liquid air? N, He, P, Sb, Ar There are two answers to this question. http://en.wikipedia.org/wiki/Liquid_air

58. ## history

In Mexico and most of Central America, most wealth is A. concentrated within the upper class. B. spread out evenly among all the people. C. divided between the middle class and the upper class. D. given to help the poorer class.

59. ## MATH

IF A PERSON SCORE 16% HIGHER Than population what is standard deviation?

60. ## Science

Please help check my answers 1. On a weather map, the center of the mid-latitude cyclone is labeled as an area (high/low) __________pressure. 2. On a weather map, a mid-latitude cyclone usually forms between these latitudes: A. 90 degrees and 180 degrees

61. ## Algebra II

I need to find the intercepts for: f(x)=e^(x^2-9x+20)-1

62. ## college algebra

Solve the system of linear equations and check any solutions algebraically. (If there is no solution, enter NO SOLUTION. If the system is dependent, express x, y, and z in terms of the parameter a.) x +2z=5 3x-y-z=12 6x-y-5z=27

63. ## Algebra

Solve the system of linear equations and check any solutions algebraically. (If there is no solution, enter NO SOLUTION. If the system is dependent, express x, y, and z in terms of the parameter a.) 3x-3y+6z=15 x+2y-z=11 5x-8y+13z=19

64. ## Transformations

List a sequence of transformations which maps the graph of y=x^2 to the image with equation y=4*(2x-3)^2 + 1 Please help

65. ## Pre Calc

Sima wishes to accumulate \$60000 in five years. She invests twice that amount in a fun that earns 7.2%, compounded quarterly. How much does she invest in each fund.

66. ## math

Luis rides his bicycle 3:4 of a mike in 5 minutes,or 1:12 hour,along the bike trail.Assuming he rides at a constant rate,what is his speed,in miles per hour?

67. ## Statistics

Assume that​ women's heights are normally distributed with a mean given by mu equals 63.8 inμ=63.8 in​, and a standard deviation given by sigma equals 3.1 inσ=3.1 in. Complete parts a and b.

68. ## science

number of grams of MgCl2 needed to prepare a 250ml of a 12% aqueous solution with 1.1g/ml density

69. ## math

find the equation of the family of hyperbolas where foci are (~4, 6) & (4, 0). Find the member of the family that passes through (2, 0)

70. ## Algebra 2

I had to solve this quadratic equation using the complete the square method. Did I do it correctly? The problem is 3x^2+18x+10= 0 (3x^2+18x+10)/3= 0/3 = x^2+6x+(10/3)=0 x^2+6x+(10/3)-(10/3)=0-(10/3) =x^2+6x= (-10/3( x^2+6x +(6/2)^2= -10/3+(6/2)^2

71. ## chemistry

a block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 3.7cm. its mass is 1.3kg. calculate the density

72. ## Math

CAMERON AND HIS FAMILY WERE EATING LEFTOVER LASAGNA. There was 1/2 of the lasagna left. Cameron has one brother, one sister, and two parents. If everyone gets the same size pieces, what fraction of the original lasagna does each member of cameron's family

73. ## Physics

A square coil with 30 turns has sides that are 18 cm long. When it is placed in a 0.31-T magnetic field, a maximum torque of 0.60 N⋅m is exerted on the coil. What is the current in the coil?

74. ## law

Does inspirational appeal always have to be engaged from a "top- down" approach? Can a leader develop a team where he becomes nearly "lateral" to his team at times that an inspirational appeal is employed, especially if it is genuine?

75. ## law

With the recent terrorists threats that the US has had for example the bombings at the Boston marathon, do you think the governement is going enough to protect the country from terrorism?

76. ## law

In your opinion what do you think is more important, civil liberties or security? Do you think that one outweighs the other?

77. ## Math

I need to see how this is answered. 1. Lauren deposited \$200 into her savings account with 1% interest rate compounded annually. After 4 years her balance was \$208.12. Colby deposited \$200 into a savings account that earned a 2% simple interest rate for 4

78. ## law

What is the context of the juvenile justice system

79. ## law

How do you feel about juvenile delinquency?

80. ## law

Are the juvenile courts doing enough to change the treatment of juveniles in the justice system?

81. ## law

Are parents and school management playing a suitable role to control increasing school violence? If not, what else can they do to help solve the problem of school violence?

What is the inverse of each of the functions defined by the following equations, if the inverse exists. If the inverse does not exist for the largest possible domain, limit the domain so that the inverse will exist. In each case, give the domain and range

83. ## Statistics

A rental agency claims that the average rent that small-business establishments pay in Suvacity is \$800. A sample of 10 establishments shows an average rate of \$863. The standard deviation of the sample is \$20. At α = 0.05,is there enough evidence to

84. ## math

Marianne buys 16 bags of potting soil that comes in 5/8 pound bags a.how many pounds of potting soil does she buy? b. if her father calls and says he needs 13 pounds of potting soil, how many additional bags should she buy?

85. ## English

12. What does the following quote reveal about Montressor’s intentions? "'Pass your hand,’ I said, ‘over the wall; you cannot help feeling the nitre. Indeed it is very damp. Once more let me implore you to return. No? Then I must positively leave

86. ## Liberty

What is the sample Z score to reject the null hypothesis if the cut off Z score +-2.31?

87. ## statistics

A population is normally distributed with mean 30, population SD =10, Sample size 25. What are the mean and variance of the distribution of means, respectively?

88. ## Math

Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? I worked it out this way 8/15 x 30 = 240/15 240 divided bt 15 = 16 seconds my teacher said I was wrong and said the answer was 30/16????

89. ## Math

Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? How would I work this out? Thank You

90. ## math

the price of a fax machine is marked down from \$305 to \$262.30. what is the rate of discount

91. ## maths

A die is thrown twice. Find the probability that the number obtained in the first throw is smaller than that in the second throw.

92. ## maths

A group of y numbers has mean x. If the numbers 3 and 5 are removed from the group, the mean of remaining(y-2) numbers remains unchanged. Find x.

93. ## Finite Math

True or false. [A ¿ (B ¾ C)]c = (A ¿ B)c ¿ (A ¿ C)c

94. ## Finite Math

True or false. P (n, r) = r! C (n, r). explain why please, thanks

95. ## Computers C++

1). After the assignment statement result = isspace('\t'); result has the value ________. 2). The data type of islower('g') is ________. 3). What will be output given the following information: float * pointer; float pay = 3.75; pointer = &pay; cout

96. ## math

if i have a mix of 4oz. to 100lbs. how much would it be for 9Lbs.

2(n+3}

98. ## chemistry

RANK THESE COMPOUNDS BY THE LENGTH OF THE CARBON-CARBON BOND

99. ## math

9/20 how do I multiply & simplity