# denise

Popular questions and responses by denise
1. ## 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

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. ## 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

5. ## 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

6. ## 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

7. ## Math

If the stem-and-leaf plot shows kilometers walked by participants in a charity benefit walk. How do I determine how many people participated in the walk and how many of the walkers traveled more than 14 kilometers? I don't want the answer. I just want to

8. ## 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

9. ## 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

10. ## Social Studies

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

11. ## 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

12. ## 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?

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,

14. ## 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

15. ## 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 _____.

16. ## trig

Karen earns 43 dollars per week working pt at a bookstore. she makes one dollar more for each book she sells. the amt A, in dollars that Karen earns in a week ifshe sells b books is given in the function A(b) =43 + b how much does she earnin a week if she

17. ## 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?

18. ## Geometry

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

19. ## 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?

20. ## 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

21. ## math

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

22. ## 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.

23. ## Math

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

24. ## 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.

25. ## chemestry

suppose two gases in a container have a total pressure of 1.20 atm.What is the pressure of gas B if the partical pressure of gas Ais 0.75 atm?

26. ## math

I have 13 ones and 4 tens. Who am I

27. ## 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 ?

28. ## math

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

29. ## science

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

30. ## Calculus

A solid has as its base a circular region in the xy plane bounded by the graph of x^2 + y^2 = 4. Find the volume of a solid if every cross section by a plane perpendicular to the x-axis is an isosceles triangle with base on the xy plane and altitude equal

31. ## Geometry

The captain of a ship at point A and sailing toward point B observes a lighthouse at L and finds angle LAC to be 36*30'. After sailing 5 km to B, he observes angle LBC to be 73*. How many kilometers is position B from the lighthouse?

32. ## 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

33. ## finding present value

Achieve 225,500 at 8/85% compounded continuously for 8 years, 125 days

34. ## 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

35. ## Physics

What is the magnitude of the earth's gravitational field at sea level?

36. ## 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.

37. ## 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.

38. ## 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?

39. ## geometry

The medial triangle of a triangle ABC is the triangle whose vertices are located at the midpoints of the sides AB, AC, and BC of triangle ABC. From an arbitrary point O that is not a vertex of triangle ABC, you may take it as a given fact that the location

40. ## stats math

Suppose Ray makes 85% of his free throws. What is the probability that Jordan will make 2 free throws in a row?

41. ## 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

42. ## 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.

43. ## 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

44. ## 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?

45. ## 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.

46. ## Chemistry

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

47. ## Math

My son's homework asks us to find the product by factoring the tens. The problem is 6 x 2, 6 x 20 and 6 x 200. I see how to do 6 x 2 (memory factor) and the 6 x 20 would be (6 x 2) and (1 x 10) then 12 x 10 = 120 but how does he show his work for 6 x 200

48. ## English

Hi, can someone please paraphrase the poem "Because I Could Not Stop For Death," by Emily Dickinson line by line? I really don't understand it! Thank you

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

50. ## 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

51. ## 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?

52. ## 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

53. ## Chemistry

Calculte the Percent Yield if 104grams of CH3CO2CH2CH3 is produced by reaction of 111grams of CH3CO2H according to : CH3CO2H + CH3CH2OH = CH3CO2CH2CH3 + H20

What is cultural diversity? Why do managers need cultural diversity? Is cultural diversity present in your organization (work, school, church, etc.)? How?

55. ## Phyiscs

An autographed baseball rolls off a 0.5m high desk and strikes the floor 0.4m away . How fast was the ball traveling when it hit ?

56. ## Chemistry

We did a lab to find the atomic mass of Magnesium. We used an eudiometer and HCL and a mg ribbon. Explain in terms of moles, limiting reactants and experimental feasibility, why we use concentrated HCl (12M) instead of 1M or 6M?? Would the calculated

57. ## 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

58. ## 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

59. ## 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.

60. ## 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?

61. ## Physics

One way to determine the distance to the moon is to bounce a laser beam off a mirror on its surface. How far away is the moon if it takes 2.56 seconds for the laser to "echo" off the moon?

62. ## liberal arts math

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

63. ## 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

64. ## Math

Convert 3¾ % to a decimal.

65. ## 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?

66. ## 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?

67. ## Physics

A force of 12.7 N pulls horizontally on a 1.4-kg block that slides on a rough, horizontal surface. This block is connected by a horizontal string to a second block of mass m2 = 2.32 kg on the same surface. The coefficient of kinetic friction is µk = 0.22

68. ## phycis

59. A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show that the weight of the load is 360 N.

69. ## Math

A customer requests a loan advance of \$300 with an annual interest rate of 22%. What is the dollar amount of the interest for the entire year

70. ## Education

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

71. ## language arts

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

72. ## algebra

please translate “A student scored five points more on the second quiz than he did the first. He scored eleven points lower on the third quiz than he did the first. If the average of the three quiz scores is 70, what was his score on the first quiz?”

73. ## Math

Carter got the following scores on Science tests: 78,82,88,90,93. What is the mean deviation?

74. ## math

A car rents for \$42 per day pluc 20cents per mile. you are on a daily budget of \$98. What milage will allow you to stay within your budget?

75. ## math

On checking with 100 families, it was found that 25 families subscribe to Time, 30 to Newsweek, and 65 to neither magazine. How many subscribe to both?

76. ## Chemistry

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

77. ## Math

The Prevu Theater keeps a set of five counterweights to help stagehands move heavy props. The weights can balance exactly any load that is a multiple of 10 kg, from 10 kg up to a total of the five weights. Give the masses of weights which meet these

78. ## Math

Could someone help with this problem, I have tried numerous of times to solve it. Thank you. Achieve \$225,500 at 8.55% compounded continuously for 8 years, 125 days.

79. ## operating system

a. What is the name and version number of the operating system? Windows XP Professional Service Pack 2 b. What kind of user-interface is used? window XP theme c. Can you see an indication that this operating system provides a job management function? If

80. ## bio-technolgy

how much MgCl2 would you use to make 200mL of a 100mM solution of MgCl2

81. ## finance

I am borrowing \$10,000 for 5 years at 9%. payments, which are made on a monthly basis, are determined using the add-on method. 1. how much total interest will i have to pay on the loan if it is held for the full 5 year term. 2. what are my monthly

82. ## Math

A letter carrier can deliver mail to 112 homes per hour by walking and 168 homes per hour by driving. By what percent is productivity increased by driving?

83. ## physics

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

84. ## trig

If cscx=2 and x greater 90 degrees and x less than 180 degrees, then sin x/2 =

85. ## child care managemen . resource file graded projec

do you guys have the penn foster resource file graded project ? if you do , can you guys help me please ?

86. ## algebra

A car rental company has two rental rates. Rate 1 is \$63 per day plus \$0.18 per mile. Rate 2 is \$126 per day plus \$0.09 per mile. If you plan to rent for one week, how many miles would you need to drive to pay less by taking Rate 2?

87. ## Statistics

1. Use the following to answer questions: The table below presents the probability distribution for X = the number of email messages you will receive in the next 10 minutes. (9 pts) X 0 1 2 3 P(X) .35 .35 .25 .05 a. What is the probability that no emails

88. ## 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

89. ## 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?

90. ## gcu

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

91. ## math

Different Interest Rates. Mrs. Brighton invested \$30,000 and received a total of \$2300 in interest. If she invested part of the money at 10% and the remainder at 5%, then how much did she invest at each rate?

92. ## Math

Use multiplication, division, addition and subtraction and at least one set of parentheses to write an expression that simplifies to 7, 13, or 17. Do your work step by step and explain each step as you simplify the expression. Demonstrate the consequences

93. ## math

june made a initial deposit of 4700 in an account assuming an interest rate of 12% compounded quarterly how much will the account be worth in 10 years

94. ## math

Jenny threw darts at the board and scored 100. How many darts did she throw,where did they land?40,39,24,17,16 you can use a number more than once!

95. ## english

Can you please tell me if the sentence in quotation marks is the topic sentence? I read paragraph one and paragraph three, I believe that paragraph one was a very effective paragraph. "It touches a few very interesting points about why someone should

97. ## 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.

If you deposit \$5000 in a savings account at 5.8% interest per year, how much will you have in 36 years? (Answer to the nearest dollar)

99. ## 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