# Denise

Popular questions and responses by Denise
1. ## Math

Katherine earned 84,92,84,74, and 70 on her first five test. What is the minimum grade Katherine needs to earn on the next test to have a mean of 84 ?

2. ## stats math

Suppose that two cards are randomly selected from a standard 52-card deck. What is the probability that the first card is a spade and the second card is a space if the sampling is done without replacement?

3. ## Math

What is the net price factor for trade discounts of 25/15/10? Use the net price factor you found in the previous question to find the net price of a couch listed for \$800.

4. ## Chemistry

Calculate the solid needed to make a 250ml solution that is 0.34M in sodium cation, using sodium sulfate decahydrate. I came up with 13.685g. but how do I make that into 250ml of a solution that is0.34M in sodium cation?

5. ## force

A 10-kg box is pulled along a horizontal surface by a force of 40N applied at a 30° angle above horizontal. The coefficient of kinetic friction is 0.3. Calculate the acceleration

6. ## Precalculus

The legs of a right triangle measure 5 inches and 7 inches. If theta is the angle between the 5-inch leg and the hypotenuse, sin theta=_____. A. .71 B. .81 C. .07 D. .58

7. ## Precalculus

A 60-foot tree casts a shadow 85 feet long. The sine of the angle of elevation of the top of the tree to the sun is approximately ___. A. .82 B. .75 C. .58 D. .33

8. ## physical science

If a sample emits 1000 counts per second when the detector is 1 meter from the sample, how many counts per second would be observed when the detector is 2 meters from the sample?

9. ## math

convert the credit card rate to APR Oregon, 2 1/4% per month

What kinds of queries would be useful to Woodcraft, assuming that it wants to improve its sales, relationship with its customers, or other aspects of its business? Describe what information you might want to select from the database in the form of a query,

11. ## Precalculus

The arc corresponding to a central angle of 35 degrees in a circle of radians 10 feet measures _____ feet. Round your answer to two decimal places.

12. ## Markov chains

A company has 2 machines. On any day, each machine that is working has a 1/3 chance of breaking down. If a machine breaks down during the day, it is sent to a repair facility and will be working 2 days after it breaks down. Letting the state of the system

13. ## Chemistry

calculate the percent composition, by mass, of carbon in Na2CO3. please explain how you get the answer.

14. ## science

2 grams of salt are dissolved in 20 grams of water. How much will the mixture weigh?

15. ## Math

Which fraction equals a repeating decimal? a) 5/80 b) 11/88 c) 17/85 d) 18/81

16. ## Math

A child's. Dose for cefadroxil is 30mg/kg body weight once a day for 14 days.what is the smallest bottle that will provide. Enough medication to last 14 days. If child weighs 44 lbs.

17. ## Accounting

The following unadjusted trial balance is prepared at fiscal year-end for Nelson Company. NELSON COMPANY Unadjusted Trial Balance January 31, 2013 Debit Credit Cash \$ 26,150 Merchandise inventory 14,500 Store supplies 5,000 Prepaid insurance 2,100 Store

18. ## math

I have 13 ones and 4 tens. Who am I

19. ## pre algebra

a total of 400 tickets were sold for the school play, they were either adult tickets or student tickets. there were 50 fewer student tickets sold than adult tickets. how many adult tickets were sold

20. ## Physics

A figure skater rotates about a vertical axis through her center with both arms and one leg extended. Her rotation rate is 0.65 rev/s. She then pulls her arms and leg closer to her body and begins to spin at a 1.85 rev/s. What is the ratio of her new

21. ## gcu

Show that 9300 cal is required to change 15 g of 20° C water to 100° C steam.

22. ## Math

From a survey of 100 college students, a marketing research company found that 60 students owned iPods, 50 owned cars, and 20 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)? 1 students (b) How many students do

23. ## math

Write each ratio as a fraction in simplest form. 1. 3 sailboats to 6 fan boats

Find the mystery number. It is a 4 digit odd number. All the digits are different. None of the digits are 0 or 9. The tens digit is twice the ones digit, and the hundreds digit is twice the tens digit. The thousands digit is one less than the hundreds

25. ## statistics

You intend to estimate a population proportion with a confidence interval. The data suggests that the normal distribution is a reasonable approximation for the binomial distribution in this case. While it is an uncommon confidence level, find the critical

26. ## Math

Two bus services A&B arrive at the station. service A arrives every 15 minutes, service B arrives every 20 minutes. The first bus arrives at 8 o'clock. When will both buses arrive at the station again?

27. ## Precalculus

Dr. Black is standing 20 feet from a streetlamp. The lamp is making his shadow 5 feet long. He estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 30 degrees. To the nearest foot, the streetlamp is about _____.

28. ## TSU

At the beginning of the year, Addison Company's assets are \$254,000 and its equity is \$190,500. During the year, assets increase \$80,000 and liabilities increase \$44,000. What is the equity at the end of the year?

29. ## math

A couple plans to save for their child’s college education. What principal must be deposited by the parents when their child is born in order to have \$100,000 when the child reaches age 18? Assume the money earns 4% interest, compounded quarterly.

30. ## accounting

Discuss how the net promoter score is calculated. Show an example of a calculation of a net promoter score (use the data below). What does this score mean specifically in this example? Discuss how the net promoter score can assist in the value of a

31. ## geometry

if the midpoints of the sides of a parallelogram in succession are joined, the quadrilatral formed is a a parallogram. Prove this theorem in euclidean geometry using analytic techniques

32. ## Education

How do adolescents' socialization experiences differ in urban and rural communities? How are such differences declining over time, and why?

33. ## pre calculus 2

use the fundamental trig. Identities to simplify tan^4x+2tan^2x+1

34. ## chemistry

Assuming that the volumes are additive, what volume of water must be added to 35.0mL of 23.0 M HCl to make a solution which is 3.00 M?

35. ## language arts

is this sentence correct -- Andrew forgot his lunchbox at school everyday.

36. ## accounting

"Harris Company manufactures and sells a single product. A partically completed schedule of the company's total and per unit cost over the relevant range of 30,000 to 50,000 per units produced and sold are: United produced and Sold: 30,000 ; 40,000; 50,000

37. ## intermediate algebra

A business executive bought 40 stamps for \$13.68. The purchase included 37 cents stamps and 23 cents stamps. How many of each type of stamp were bought?

38. ## math - algebra

When solving equations by adding integers, what does it mean when one number is in parenthisis? Do you do something different when they are in parenthisis? Example below: 36 + (-28) + (-16) + 24 = y Thank you Numbers in parenthesis means the number is what

39. ## physics

The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50 m in a straight line, reaching a final speed of 89 km/h. (a) Determine the cheetah's average acceleration during the

40. ## Math

The temperature in Amarillo is 74 degrees and is increasing at a rate of 2 degrees per hour. In Houston, it is 68 degrees and increasing 4 degrees per hour. Write an inequality to find how long it will take for the temperature in Houston to exceed the

41. ## Contemporary Mathematics

A long year-end status report for work is 131 pages long. You need to print 13 copies for a meeting next week. How much is the paper going to cost for those reports? Paper is sold in reams (500 pages) for \$3.97 each.

42. ## Geometry

What is the most precise classification of the quadrilateral formed by connecting the midpoints of the sides of the isosceles trapezoid?

43. ## Algebra II

The sum of the reciprocals of two consecutive positive integers is 17/12. Write an equation that can be used to find the two integers. What are the integers?

44. ## Math

A 12-ft. board is cut into 2 pieces so that one piece is 4 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.

If 3 cards are drawn with replacement from a shuffled deck, what is the probability that at least one of them will be a heart

46. ## math 2

a bag contains 8 blue marbles 6 red marbles and 4 green marbles .What is the probability of selecting a blue marble, replacing it in the bag and then selecting a red marble ?

47. ## Statistics

Pop. Mean =87 Standard deviation=8 Sample size=64

48. ## statistics

candidate #2 received 32% of the votes and candiate #3 received 14% of the votes, WITH a 6 % margin of error. what does this information tell us about the popularity of the candidates? 5

49. ## Science

Is air a good radiator, insulator, conductor or convector of heat? If three metal spoons are on a table and each at room temperature, what will happen if they touch?

50. ## Integrated Trig

How many years will it take for an initial investment of \$5,000 to double if it is invested at a rate of 3% compunded continuously? Compounded annually?

51. ## biology

What is a description of the Amazon rain forest—definition of rain forest; characteristics ; location and size of the Amazon rain forest

52. ## microeconomics

charlie loves watching teletubbies on his local public tv station,but he never sends any money to support the station during its fundraising drives.

7/12 x 36 =

54. ## Math

13/15 - 2/3 =

55. ## Math

What is the future value of \$800 invested for 14 years at 11 percent compounded annually

56. ## Math

The scores on a standardized test are normally distributed with the mean of 750 and standard deviation 70. Find the probability that a score is more than 890.

57. ## Math

What is the net price of each Natureland Garden Center lawn mower?

58. ## Math

Natureland Garden Center buys lawn mowers that list for \$679.95 less a 30% trade discount. What is the dollar amount of the trade discount?

59. ## Math

After a 15% pay raise, Scott Walker now earns \$27,600. What was his salary before the raise?

60. ## Math

Convert 3¾ % to a decimal.

61. ## chem

how many calories of heat energy are required to warm 250ml of water from 35 degrees celsius to 64 degrees celsius?

62. ## algebra

Convert the credit card rate to APR , Oregon, 2 1/4 per month

63. ## geometry

It was stated that

64. ## stats math

Suppose you are selling raffle tickets for \$3.00 each. You have the following prizes.1 grand prize of \$150 1 prize of \$75 1 prize of \$50 1 prize of \$25 5 prizes of \$10 each A total of 500 raffle tickets are sold. What is the expected value of each ticket?

65. ## Psychology

One common aspect of among dissociative disorder is:

66. ## Math

it takes Lucy 7 minues to cut a 20 yard by 1-yard roll of fabric into 14 equal pieces. How many minutes would it ake her to cut the fabric into 25 equal pieces?

67. ## ece

can someone help me with this please!!! only serious peoples need to apply with no nonsense negative people. 1. two important factors to consider when making a music selection are variety and a.quantity b.quality c.mood d.rhythm 2.the best means of helping

68. ## physics

Two objects of mass 1.00 × 103 kg each are a distance of 4.00 m from each other. If the center of one mass is regarded as being at the origin of the x-axis, and the other is centered at 4.00 m along the x-axis, what is the magnitude of the gravitational

69. ## pre cal 2

Find all solutions in the interval [0, pi], 2sec^2x+tan^2x-3=0

70. ## Statistics

Use the Empirical Rule to find what two values 95% of the data will fall between for a data set with a mean of 294 and standard deviation of 13.

71. ## Physics

The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth

72. ## Physics

The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth

73. ## Statistic

Examine the three samples listed here. Without performing any calculations, indicate which sample has the largest amount of variation and which sample has the smallest of variation. Explain how you produced your answer. a) 17 29 12 16 11 b) 22 18 23 20 17

74. ## critical thinking

The reason the auto industry is such a mess is the outrageous union contracts that the automakers are burdened with. Fallacy Type: Why it is this fallacy type: Resource that describes this fallacy type:

75. ## soc 101

Imagine a society in which there are no social classes- no differences in people’s wealth, income, and life chances. What would such a society be like? Would it be stable or would its social structure change over time? How could you apply Max Weber’s

76. ## chemistry

this is for a lab - determining the chemical formula of a hydrate. suppose the hydrate was heated too quickly and some of it was lost of spattered out of the container. explain how hthis would effect a) the calculated percent by mass of water in the

Ø In what ways are purpose, audience, tone, and content different for interpersonal and business communication? Provide specific examples to support your answer.

78. ## precalculus

1-2sin^2(theta/2)=2cos^2(theta/2)-1

79. ## intermediate algebra

A total of 26 bills are in a cash box. Some of the bills are one-dollar bills, and the rest are five-dollar bills. The total amount of cash in the box is \$50. Find the number of each type of bill in the cash box.

80. ## science

what is mutaualism? how has it affected the existence of clown fish and sea anemone? I think mutualism is where two species live in an ecosystem where they interact with each other and one gains something from the other like a bug cleaning a animal and in

bobs

82. ## math

how do I divide fractions

83. ## physics

Roger tosses a ball straight upward at v. Ignore air drag?

84. ## Probability of Compound Events

Mr. Challenger randomly selected two apples without replacing the first apple from a crate containing 10 green apples, 14 red apples, and 18 yellow apples. What is the probability that he selected a yellow apple first and a green apple second?

85. ## Social Studies

why were the islands shown on this map most likely acquired or annexed by the united states?

86. ## Chemistry - Gravimetry

If 0.8000 g of a mineral yields 0.2400 g of NaCl + KCl, and this mixture contains 58.00% of Cl, what is the percentage of Na2O and K2O in the mineral? I already tried solving it and I got 12.69% Na2O and 3.84% K2O. However, I checked the answer key and the

87. ## Physics

At what altitude above the Earth's surface is the gravitational field strength equal to g/7? .981 = -(1.0003322(6,371/6,371+h))^2)

88. ## Chemistry

A lead fishing weight cotains 0.12 mol of lead atoms. What is its mass?

89. ## algebra

In 2020 a​ city's budget is projected to be ​\$3131 million. This is approximately StartFraction 14 Over 3 EndFraction 14 3 of the 2000 budget. What was the​ city's budget in​ 2000?

90. ## liberal arts math

A population of 240 animals decreases at an annual rate of 10%. Find the multiplier for the rate of exponential decay.

91. ## Algebra

The function g(t) = 2t represents the number of guitar lessons, g(t), you can compete in t months. How many guitar lessons can you complete in 7 months? Provide your conclusion as a complete sentence. thanks for help

92. ## Algebra II

Given the triangle below, find sec X, tan X, and cos X in fraction form. *right triangle, hypotenuse goes from top right to bottom left, bottom side is longer than top side. Top right point is z, left point is X, bottom right angle (the right angle) is Y.

93. ## Algebra II

In triangle ABC, C is a right angle. Side c=9 and side a=5. What are the measures of the remaining sides and angles, in degrees, of the triangle? Round answers to the nearest hundredth if needed.

94. ## Math

(33 +19)2(33+19-1)

95. ## Math

(2)(33)(19)[2(33)(19)-33-19]

96. ## Math

A 12-ft. board is cut into 2 pieces so that one piece is 4 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces 12ft-x=3x+4 12ft- x-3x=4ft 12ft-4x =4ft -4x=-8ft x=2ft

97. ## Statistic

If p=.0059538866 critical value is 3.72 is p greater than cv

98. ## Chemistry

On Mars, the gravitational acceleration (g) is equal to 3.7 m/s2. Imagine the experiment from our lab performed on Mars, using a distance of 68 m from the catapult to the bucket. What velocity would you need to launch the ball into the bucket?

99. ## Statistic help

What do I do in correlation question. Indications of where the relationship is linear showing cv?