# Kasey

Popular questions and responses by Kasey
1. ## statistics

A Gallup poll of 1236 adults showed that 12% of the respondents believe that it is bad luck to walk under a ladder. Consider the probability that among 30 randomly selected people from 1236 who were polled, there are at least 2 who have that belief. Given

2. ## Statistics

Find the critical value za/2 that corresponds to the given confidence level. 96%

3. ## statistics

The amount of snow fall falling in a certian mountain range is normally distributed with a mean of 83 inches, and a standard deviation of 16 inches. What is the probability that the mean annual snowfall during 64 randomly picked years will exceed 85.8

4. ## Physics

Nicole throws a ball straight up. Chad watches the ball from a window 5.0m above the point where Nicole released it. The ball passes Chad on the way up, and it has a speed of 10m/s as it passes him on the way back down. How fast did Nicole throw the ball?

5. ## Statistics

Compute the critical value za/2 that corresponds to a 85% level of confidence.

6. ## math

When you flip a biased coin the probability of getting a tail is 0.38. Find the probability of getting a head.

7. ## math

Write this repeating decimal as a ratio of relatively prime integers: 0.324324324...

8. ## statistics

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use a binomial probabilities table to find the probability of x successes given the probability p of success on a given trial. n=8, x=2, p=0.30

9. ## Statistics

A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 320 babies were born, and 256 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born.

10. ## Science!

Please check my answers! thanks! :) 1. A population of oak trees growing in a region in Canada experiences a change in climate to much colder temperatures and much drier conditions than they have had for many decades. What determines how this population

11. ## math

An arithmetic series has a first term 8 and third term 20. What does the fifth term equal? What does the second partial sum equal?

12. ## Statistics

Many states are carefully considering steps that would help them collect sales taxes on items purchased through the Internet. How many randomly selected sales transactions must be surveyed to determine the percentage that transpired over the Internet?

13. ## Physics

Standing side by side, you and a friend step off a bridge at different times and fall for 1.41 s to the water below. Your friend goes first, and you follow after she has dropped a distance of 1.93 m. (a)How long does it take your friend to fall 1.93 m?

14. ## Statistics

The distribution of IQ scores is a nonstandard normal distribution with a mean of 100 and a standard deviation of 15. What are the value of the mean and standard deviation after all IQ score have been standardized by converting them to z scores?

15. ## Statistics

Find the critical values x2L and x2R that correspond to the given confidence level and sample size. 99%: n=23

16. ## History

Can someone help me with these 2 questions please? thanks!! :) 1. Why did President Madison veto a bill that supported government funding of internal improvements? (1 point) The Second Bank of the United States did not have enough money to pay for the

17. ## physics

A child swings on a playground swing. How many times does the child swing through the swing's equilibrium position during the course of 3 period(s) of motion

18. ## Psychology

Optimum physical health usually occurs: a. between the ages of 15 and 21. b. between the ages of 18 and 25. c. between the ages of 25 and 40. d. between the ages of 40 and 55. I think it is either c or d.

19. ## Psychology

Danette knows she is not at all like her parents. She could never be like them. She is her own unique person. Her style of dress, mannerisms, and language emphasize her uniqueness. According to Erikson, Danette is attempting to establish: a. permanence. b.

20. ## Psychology

The neurobiologist explained to the students, "The neural system is very much like the wires connecting your TV and stereo to the electrical outlet. If the wires were not covered with insulation, the signal would short circuit." The neurobiologist was

21. ## chemistry

What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl? Kb of CH3NH2 = 3.7e-4.

Indicate the alternative that both correctly evaluates the following sentence and correctly explains the reason for the evaluation. "As soon as you provide your date of birth on Line 2, your application for a flexible spending account will be processed."

As a professor at State University, you have been asked to write a letter of recommendation for one of your advisees who is applying for an internship. The student is now a senior and you have known her since she was a freshman. She has taken two courses

Crystal agreed to serve on a company's advisory board and now has to contact them to say she cannot attend a scheduled meeting where she was to be one of several key speakers. What should she do? a. Let the company know she cannot attend and that they will

Is the subject line "Improving Customer Service" appropriate in a message to superiors? a. Yes, because it focuses on solving the problem. b. No, because the word "service" makes the subject line seem negative. c. No, because the boss is likely to think

26. ## spanish

i know that "hay" is there are or there is... but how do you say there was??

27. ## Mathematics

What is the title

m=-5,(-3,-9)

If m

30. ## Physics

Ann, a 66.2 kg person throws a 0.0461 kg snowball forward with a ground speed of 39.2 m/s. Billy, with a mass of 54.8 kg, catches the snowball. Both people are on skates (Disregard friction between the skates and the ice. ). Ann is initially moving forward

31. ## algebra 2 - minimum or maximum

Find the minimum or maximum value of f(x)=−0.25x2+4x−18

32. ## Physics

A ball is thrown off a cliff that is 10 meters tall. The horizontal speed of the ball is 8 m/s. Assuming no air resistance, how far from the base of the cliff will the ball land?

33. ## Logs

Solve the equation and check your solutions. Note any extraneous answers. log(3x-13)=2 - log x

34. ## Pre=Calc

Use composition to show that the given functions are inverses (You must show both compositions). Help? g(x)=x^2+3/2

35. ## Logarithm

Determine the value of each logarithm a) Log(4)256 b) Log(2) 1/64 Thank you!

36. ## Chemistry

How much NACl do i need to dissolve in grams to make 0.9%solution of 0.25l saline

37. ## Math

Molly uses 192 beads to make a bracelet and a necklace.it takes 5 times as many beads to make a necklace than it does to make a bracelet .how many beads it takes to make the necklace ?

38. ## Math

Suppose F(G(x))=x^(2) and G′(1)=5. Find F′(G(1)). F′(G(1))= ___

39. ## Maths

A train travels from city A to city B. It leaves A at 11:15 AM and arrives at B at 2:20 PM. The distance between the cities is 123 miles. What was the average speed of the train in miles per hour (mph)? The average speed is ___ miles per hour.

40. ## Physics

a 4.50 kg mass traveling east at 5.0 m/s has a head-on elastic collision with a 1.5 kg mass traveling west at 3.0 m/s. find the velocity of each mass after the collision. my work so far: vif= (4.50-1.5/4.50 + 1.5) x2 v2f= (2m1/4.50+1.5) x 2 I don't get the

41. ## algebra

75=m/3+10 27=-2Y+15

where do most people in arabia and iraq live? a.in the fertile crescent b.in the rub' al-khali c.in cities d.in and around mecca a? b? or d?

43. ## Statistics

An investor has \$1400 to invest, and his financial analyst recommends two types of junk bonds. The A bonds have a 6% annual yield with a default rate of 3%. The B bonds have a 9% annual yield with a default rate of 7%. (If the bond defaults, the \$1400 is

44. ## Statistics

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 52.0 minutes. Find the probability that a given class period runs between 50.25 and 50.5 minutes.

45. ## Statistics

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. n=21, x=18, p=0.75

46. ## Math

Selma went to the mall and spent 1/3 of her money. She then lost 1/2 of what she had left. She then had \$6. How much money did Selma originally have?

47. ## math

A fruit stand has 28 apples, 20 oranges, and 12 pears. What is the ratio of apples to the total pieces of fruit? A. 1 : 4 B. 7 : 15 C. 1 : 2 D. 7 : 8

48. ## math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. 4(2+1)² -------- 3(1)²

49. ## math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. Show work. 8(2+3)² ------- 2(5)²

50. ## math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. Show work. b) 3(12+2+1) ---------- = 3(4 + 1)

51. ## math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. Show work. a) 2(5+3+2) -------- 2(2+3)

52. ## math

9000 equal 900 times

53. ## Physics

A gull is flying horizontally 8.17 m above the ground at 6.35 m/s. The bird is carrying a clam in its beak and plans to crack the clamshell by dropping it on some rocks below. Ignoring air resistance, what is the horizontal distance to the rocks at the

54. ## Chemistry

To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 2.7L bulb, then filled it with the gas at 1.30 atm and 30.0 C and weighed it again. The difference in mass was 3.9 g. Identify the gas. I used Pv=nRT

55. ## Physics

An old trick to find out if a train is coming is to put your ear on the rails of the track. Why is this more effective than just listening for the sounds the train makes in air?

56. ## Algebra I

Write an equation based on the given facts and find the solution. Show all your work, including the steps for solving the equation and checking your answer. –2 times a number plus 12 is –110. Find the number.

57. ## analysis

What is meant by the sample space for a random experiment?

58. ## math

Using the letters in ADJUSTING without repeats, How many different nine letter arrangements could be made? How many of these nine-letter arrangements have a consonant in fifth position and J in sixth position? What special name is given to the sixth

59. ## physics

A spring with a spring constant of 1.33 102 N/m is attached to a 1.6 kg mass and then set in motion. (a) What is the period of the mass-spring system? (b) What is the frequency of the vibration?

60. ## physics

Find the length of a pendulum that oscillates with a frequency of 0.19 Hz

61. ## physics

In preparing to shoot an arrow, an archer pulls a bowstring back 0.37 m by exerting a force that increases uniformly from 0 to 246 N. What is the equivalent spring constant of the bow?

62. ## Math

ok I am a fraction.Iam greater than 1/5 and less than 1/3.My numerator is a on.What fraction am i?

63. ## Psychology

Kara heard the noise, but could not understand what was being said. Perhaps it was simply the humming of the machines that she heard? She was uncertain whether she should move toward or away from the sound. Kara is having difficulty with: a. sensation. b.

64. ## Psychology

Sound that impinges on the inner ear and the auditory nerve arrives as a fairly meaningless stimulus. At this point, it should be viewed as: a. perception. b. sensation. c. an auditory stimulus item. d. free of environmental noise. I think it is either a

65. ## Psychology

In a classroom experiment, students were asked to place one paper clip in each hand. They were then instructed to add paper clips to the left hand until they were certain that the clips in the left hand weighed more than the paper clips in the right hand.

66. ## Psychology

As a scientist, Carl is concerned with the intensity of lights in the modern human environment. In his research project, Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed. Group

67. ## Psychology

Avis put off writing her term paper until three days before it was due. "It's not that big of a deal. I can whip it out in a couple of hours," she thought. As it turned out, this was not the case. She averaged two-hours-a-night sleep as she struggled to

68. ## Psychologist

Maurine is a social drinker, drinking only occasionally during weekend parties with her friends. When she found out that she was pregnant, she: a. stopped all drinking because she knew that even a small amount of alcohol could harm the developing baby. b.

69. ## Psychology

Dr. Lange is a developmental psychologist. He specializes in cognitive development during the period of infancy. Like most psychologists who focus on specific periods of development, his studies: a. emphasize the chemical changes in the synaptic gap. b.

70. ## Psychology

Dr. Gillian explained that research has identified over 25,000 genes that are responsible for the genetic information that progresses from generation to generation. These genes are: a. telomeres which cap the chromosome. b. located in a specific order

71. ## Psychology

According to the all-or-none law: a. all axons in an area will fight at a given signal. b. an axon moves from its resting state with various degrees of stimulation. c. only sufficient electrical activity will cause the axon to fire. d. there is a gradual

72. ## Psychology

The morning was frigid and the roads covered with ice. As Paula drove to work, she was cautious, especially in less-traveled areas. When she entered the main highway, the situation was worse than she expected. As she passed a truck that had slid off the

73. ## c++ program

how can a modfiy this source code to a menu. #include #include #include main() { char cYesNo = '\0'; int iResp1 = 0; int iResp2 = 0; int iResp3 = 0; int iElaspedTime = 0; int iCurrentTime = 0; int iRandomNum = 0; int i1 = 0; int i2 = 0; int i3 = 0; int

74. ## c++ program

will this work for a source code that receive and total collection of payroll amounts entered at the terminal until 999 is reached. #include #include main() { int num = 0; printf("Enter number (-999 to quit:"); scanf("%d" ,&num); while num = 999);

75. ## C++ program

Please help am not very good at c program. Am supposed to create a source code that will display to the screen the first 20 numbers with their squares and cubes.

76. ## C++ program

Create a source code that will prompt for recive and total a collection of payroll amounts entered at the terminal untill a sentinel amount of 999 is entered. Here is what i have so far i know not much but am not that great at this class. #include #include

77. ## C++ program

Create a source code that will prompt for recive and total a collection of payroll amounts entered at the terminal untill a sentinel amount of 999 is entered. Here is what i have so far i know not much but am not that great at this class. #include #include

78. ## Chemistry

Suppose that 50 mL of 0.3 M LiOH and 60 mL of 0.1 M NaHSO3 are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.? Ka of HSO3- 1/Ka of HSO3- Kb of OH- 1/Kb of OH- Kb of SO3-2 1/Kb of SO3-2 Kw 1/Kw There is no reaction.

Which of the following would be the LEAST appropriate in the closing paragraph of a negative message? a. "Let us know if model #A01 would be a suitable substitution." b. "Our layaway plan will enable you to purchase all the clothes the children need for

Which of the following statements explains why threats are NOT effective for motivating people? a. Threats reduce tension. b. Threats ensure that appropriate actions are not abandoned. c. Threats produce permanent change. d. Threats provoke

As a professor at State University, you have been asked to write a letter of recommendation for one of your advisees who is applying for an internship. The student is now a senior and you have known her since she was a freshman. She has taken two courses

In which of the following situations would it be BEST to recast the situation as a positive message? a. When you want to maintain goodwill with the reader, because you still have to deal with each other b. When there really is not a reason for the refusal

Which sentence presents an alternative in appropriate way? a. "The 11 a.m. flight is completely sold out, so I booked you on the 2 p.m. flight. Hopefully that will work for you." b. "We are out of the red units, so we went ahead and shipped you 12 green

Indicate the alternative that both correctly evaluates the following sentence and correctly explains the reason for the evaluation. "As soon as you provide your date of birth on Line 2, your application for a flexible spending account will be processed."

Which of the following would be the LEAST appropriate in the closing paragraph of a negative message? a. "Let us know if model #A01 would be a suitable substitution." b. "Our layaway plan will enable you to purchase all the clothes the children need for

When you are writing subject lines for negative messages to peers and subordinates: a. put the topic, but not your action on it, in the subject line. b. put the topic, including your action on it, in the subject line. c. do not include the topic in the

(9m+2)(m-3)

88. ## Algebra

I do not understand multioplying binomials + factoring (x+9) (x-9) can you show and explain the steps

89. ## biology

explantion for a question or a problem that can be formally tested

90. ## geometry

A polygon has a perimeter of 13 cm. What is the perimeter of its image after a size transformation with a scale factor of 3? Why?

91. ## ALGEBRA

A magazine advertises its \$12 annual subscription price as 70% off the newsstand price. What is the number of dollars per year a reader would spend if the magazine were purchased at the newsstand price?

92. ## algebra

What is the 100th term of the arithmetic sequence 3/4, 5.25, 39/4, 14.25,...? Express answer as a decimal to the nearest hundredth.

how does the salinity of a solution affect osmosis in an onion cell?

94. ## statistics

A small company has 9 female employees and 15 male employees. In how many ways can 8 employees be selected at random for drug testing if exactly 5 of the employees must be males?

95. ## surveying math

I need help with this problem and I need to show my work. Can anyone help me? A vertical angle of -40 is recorded between A and B. The slope distance, after meteorological corrections, is 806.388 m. What is the horizontal distance between A and B?

96. ## Math (surveying)

I am having a really hard time figuring this problem out. I need to see how it is worked. THANKS!

97. ## calculus

I am having a problem with solving this Given the function f described by f(x)=x+3, find each of the following: f(0) f(-13) f(-12) f(1) f(4+8) can you help me please?

98. ## math

Charlie wants to buy a \$900 TV in 15 months. How much should he invest now at 14% simple interest to have the money in 15 months?

How do I use Distributive Property to solve 10*32? I have to show my work.