# Questions Asked onAugust 9, 2010

1. ## Chemistry

Does anyone know why Glucose is soluble in water but is not soluble in Hexane?

2. ## trig

find exact value of cos(23pi/6)

3. ## Finance

Medallion Cooling Systems, Inc., has total assets of \$10,000,000, EBIT of \$2,000,000, and preferred dividends of \$200,000 and is taxed at a rate of 40%. In an effort to determine the optimal capital structure, the firm has assembled data on the cost of

4. ## chem

Suppose a hydrogen-oxygen fuel-cell generator was used to produce electricity for a house. Use the balanced redox reactions and the standard cell potential to predict the volume of hydrogen gas (at STP) required each month to generate the electricity

5. ## Calculus - Dot Product

A crate is dragged 3m along a smooth level floor by a 30n force applied at 25deg to the floor. Then it is pulled 4m up a ramp inclined at 20deg to the horizontal, using the same force. Then, the crate is dragged a further 5m along a level platform using

6. ## chemistry

A 0.942 M sample of carbonic acid, H2CO3, has a measured hydronium ion concentration of 6.36 ´ 10–4 M. Calculate the acid-ionization constant of carbonic acid. The equilibrium equation is: H2CO3(aq) + H2O(l) H3O+(aq) + HCO-3(aq)

7. ## Math

Can the rations 2/18 and 5/45 make a proportion?

8. ## physical

Question 10 An airplane traveling north at 400 m/s is accelerated due east at a rate of 50 m/s2 for 6 s. If the effects of air resistance and gravity are ignored, what is the final speed of the plane? 1. 300 m/s 2. 400 m/s 3. 500 m/s 4. 700 m/s 5. 800 m/s

9. ## chemistry (acid-ionization constant)

A 0.942 M sample of carbonic acid, H2CO3, has a measured hydronium ion concentration of 6.36 ´ 10–4 M. Calculate the acid-ionization constant of carbonic acid. The equilibrium equation is: H2CO3(aq) + H2O(l) H3O+(aq) + HCO-3(aq)

10. ## Physics - Relative velocity

A barge is heading directly across a river at35km/h while you are walking on the barge at 4km/h in the same direction as the barge is heading. The current is flowing downstream at 1.4km/h. a) What is your velocity relative to the shore? (7.6km/h) b) What

11. ## Dot Product 1

A crate is dragged 3m along a smooth level floor by a 30n force applied at 25deg to the floor. Then it is pulled 4m up a ramp inclined at 20deg to the horizontal, using the same force. Then, the crate is dragged a further 5m along a level platform using

12. ## math

cindy is making a punch for a party. the recipe calls for 3 bottles of cranberry juice in order to make enought punch to serve 40 guests. how many bottles of cranberry juice wil cindy need in order to make enough punch to serve 100 guest?

13. ## GEOMETRY 4.6

USE THE GIVEN SET OF POINTS TO PROVE EACH CONGRUENCE STATEMENT E(-3, 3), F(-1, 3), G(-2, 0), J(0, -1), K(2,-1), L(1, 2);

14. ## Dot Product

Determine the interior angles of triangle ABC for a(5,1) b(4,-7) and c(-1,-8)

15. ## Art history

Painting : Sixtus in appointing platina as prefect of the Vatican Can you tell me more about this painting, for example, 1) the character of Sixtus IV and his favoritism 2) How Renaissance is illustrated in the painting 3) How Humanist is illutrated.

16. ## Calculus - Dot Product

consider a rhombus ABCD a) find the resultant of vector AB + vector AD and vector AB - vector AD? (cosine rule) b) What will be the value of the dot product of vector AB + vector AD and vector AB - vector AD always be? (always zero) c) Is this value of the

17. ## science

A sailboat is traveling at a steady speed of 13 mph. The force of the wind pushing against the sail is _______ the opposing force of the water resistance. multiple choice equal to greater than less than

18. ## chemistry

write a complete strucural formula for each reaction, Name the reactio and then the reactants and products C3H6 + Cl2 --- C3H6Cl2 NH3 + C4H9COOH---C4H9CONH2 + H2o C5H12 = O2 -- CO2 H2O

19. ## chemistry

Using structural formula, draw formulae illustrating the complete combustion of ethanol

20. ## ecology

Why does the rainy season in the tropical dry forest and tropical savanna biomes come during the warmer months?

21. ## statistics

Annual household incomes in a certain region have a distribution that is skewed right, with mean 30.25 thousand dollars and a standard deviation of 4.50 thousand dollars. If a random sample of 100 households is taken, then the probability that the sample

rosa wants to buy a computer desk that originally cost \$650. It has been marked down to a new price of \$520. What is the percent off?

23. ## math

a pari of shoes is on sale for 10% off the original price. If the sale price is \$14.40, what was the original price of the item?

24. ## algebra

Use inductive reasoning to predict the next complete line in the pattern. 10 × 12 = 11 × 13 - 23 12 × 14 = 13 × 15 - 27 14 × 16 = 15 × 17 - 31

25. ## Algebra

Monica Wilson gets \$12.75 per hour with time and a half for any time over 40 hours per week. If she works a 50 hr week and gets paid \$652.25, by how much was she underpaid?

26. ## algebra

Since I am new to the algebra and do not fully understand it, I am not sure how to answer the following question. Hope you can help. thanks how do you know when an equation has infinitely many solutions

27. ## Physics

(b)A centrifuge has a maximum rotation rate of 10,000 rpm and can be stopped in 4 seconds. Assume the deceleration is uniform. The centrifuge radius is 8 cm. What is the distance that a point on the rim travels during deceleration?

28. ## statistics

Given a sample size of 38, with sample mean 660.3 and sample standard deviation 95.9 we are to perform the following hypothesis test. Null Hypothesis H0: ƒÊ = 700 Alternative Hypothesis H0: ƒÊ ‚ 700 At significance level 0.05 3. Calculate the test

29. ## math

the trainers took a count of the animals at the zoo. there are both birds and four legged mammals at the zoo. the trainers counted 550 feet and 155 animals on their first trip through. How many birds and mammals are there?

30. ## Physics

what is the gravitational potential energy at the centre of the earth??? If infinity is taken as the reference (i.e zero energy level)

31. ## Math

There are 13 flavbors at a local ice cream parlor. Is the number 13 a prime number or a composite number? If it is composite, write the number as the product of prime numbers

32. ## MATHS

A CONE WAS CONSTRACTED FROM PLASTIC, HAVE A HEIGHT OF 20cm (PART C). THE LID IS MADE UP OF HEMISPHERE HAVE RADIUS 0F 5cm (PART A) AND PYRAMID HAVE VOLUME OF 81,667cm³. THE LID FITS EXACTLY OVER THE CONE. A) CALC. THE VOL. OF PART A. B) CALC. THE VOL. OF

34. ## Chemistry

*cont'd. the conversation about why does the blue color of Iodine disapear when amylose reacts with saliva. The answer I chose(wrote in earlier post) was incorrect. the choices remaining are 1. Saliva causes the amylose chain to uncoil soIodine is no

35. ## math

Dan runs 4 miles in 30 minutes. At the same rate, how many miles would he run in 18 minutes?

36. ## Psychology

What impact does academic achievement have on self-esteem? How does this impact explain high school drop-out rates?

37. ## vocab

Sensory details. Need to write a complete sentence. You are hurrying to get home before a thunderstorm.

Imagine you are a homeowner getting ready to sell your home. You realize there are some landscaping problems you want to address so your home will sell quickly and you can get the best price. After making this decision, you realize there are many things to

39. ## Algebra

The ratio of the weight of an object on Mars to the weight of an object on Earth is 0.4 to 1. How much would a 120-lb astronaut weigh on Mars?

40. ## Physics

(ii) For the wheel of diameter 10 cm, find its final speed after traversing a distance of 10 m down an incline of 25º. Assume it starts from rest. I know i have to use the conversation of enrgy formula but how do i apply it to this instance?

41. ## grammar

Is this sentence correct? I know that he will do the job as best he can. Or should it be? I know that he will do the job the best he can.

42. ## psy 240

You specialize in prenatal care and Mary, one of your patients, just discovered she is pregnant. She is very curious about how the sex of her baby will be determined. How would you discuss the neuroendocrine system’s involvement with sexual development

43. ## US History

1)Slave rebellions in the colonies were a result of a)harsh controlling African Americans' activities b)economic downturns c)the spread of democracy d)worsening conditions aboard slave ships I think C ? 2)The Green Party and Farmers' Alliances both called

44. ## chemistry

two mercury-glass thermometer are labelled T and D, respectively. On a T scale, at 1 atmosphere, ice melts at -10T,and pure water boils at 80T. On the D scale ice melts at 20T and pure water boils at 100T at 1 atmospheric pressure. (a) Derive an equation

45. ## reimbursement methods

what formula do i follow for reimbursement the hospital receives from medicare

46. ## grammar

I'm a little confused. so it's first and a? For the Jim Thorpe was the first winner of a gold metal among Native Americans.

47. ## statistics

A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? a. There is no mode. b. There are two modes. c. There are three modes.

48. ## math

Suppose that a reporter uses the statement (Average Number of Firearms Per Owner), and creates the following headline for her newspaper. Every Person in the US Owns More Than Four Firearms. Should her editor accept the headline? Explain your reasoning.

49. ## Early childhood

what arethe responsibilities that a teacher has to volunteer parent when these parent are invited to participate in learning activities.

50. ## algebra

find the product of (x^2-3x+5)with the quotient of (21x^6- 14x^5-7x^3)divide by 7x^3

51. ## algebra

If Sam Stevens and four other friends want to schedule a 6 hour fishing trip on Lake Ontario with Reel Easy Sport Fishing. The cost for five people is \$445. The cost for six people is 510. How much money per person will Sam and each of his friends save if

52. ## cultral diversty

the linguistic, political, social, economic, religious, and familial conventions or statuses of four Hispanic groups living in the United States. Your paper must address Mexican Americans, Puerto Ricans,

53. ## math

A 120lb person should ear a minimum of 44 grams of protein each day. How much should a 180-lb person eat each day?

54. ## math

18. A cyclist bikes x distance at 10 miles per hour and returns over the same path at 8 miles per hour. What is the cyclist's average rate for the round trip in miles per hour?

55. ## Health Information

You own a company in a state where state funds aren't mandated for employee health insurance. What's one option for providing your employees with health care coverage for work-related injuries? a. medicaid plans b. referrals to other network groups c.

56. ## College Algebra

13. Write the binomial expansion of (2a – 3b)4.

57. ## College Algebra

Prove by mathematical induction: ∑_(i=1)^n▒〖3^i=3(3^n-1)/2〗

58. ## College Algebra

Write the binomial expansion of (x^2+2/x)^5.

59. ## grammar

Mr. Jones and him are very good friends. Is it I or he?

60. ## english

I'm not sure how to write an appendix for a project that I'm working on. Can anyone give me some guidance?

61. ## stats

Say you perform an experiment in which you flip a coin 20 times. You are looking for statistically significant outcomes (outcomes that have a probability of occurring that is less than your alpha level). You choose an alpha level of 0.01. 1.) You decide to

62. ## grammar

find the adjectives. Jim Thorpe was the first winner of a gold metal among Native Americans.

63. ## grammar

Thorpe won the pentathalon and the decathalon of ten extraordinary events. Are the adjectives pentathalon, decathalon and ten?

gold

65. ## chemistry

what two tests can I use to determine if a comound is an alcohol or a short or long chained carboxylic acid. I have two substances a colourless liquid and a white solid.

66. ## finance

You have purchased a house and have obtained a 30-year, \$ 200,000 mortgage with an interest rate of 10%. What is your annual payment? Assuming you bought the house on January 1, what is the principal after one year? ten years?

67. ## statistic

3. Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. b. The median is greater than the first quartile. c. The third quartile is

68. ## computers

the main function of the cpu is to control the input, process, and output to and from peripheral devices

69. ## Math

Using the terms factors, divisors, multiple, product, and divisible by, write as mant statements as you can about the number sentence 4x7=28.

70. ## Literature

What literature do you consider to be part of the United States' current literary canon, and why? o How do those selections reflect the cultural tradition of the United States? o What do you consider to be part of your personal literary canon?

How long is a license to practice medicine in your own organization good for? I live in florida and can not find this answer so am sure i am not looking in the right place. can you help?Podiatric medicine is what i am working on.

72. ## volcab

yes. write a complete sentence using sensory details about hurrying home befire the storm hits. Sorry.

73. ## Chemistry

Is Amylose different than Amylopectin in that Amylose is a polymer of a-D-glucose but amylopectin is a polymer of b-D-glucose? Thanks for any help offered. Carbohydrates that are called reducing sugars are those that__ a. have OH groups that are easily

74. ## Physics

what is the gravitational potential energy at the centre of the earth??? If infinity is taken as the reference (i.e zero energy level)

X2-7x-12/x-2

76. ## Music

What are the two basic forms for vocal selection in operas?

77. ## algebra

Solve. Type an integer or simplified fraction for: -7x -22 = -26 2/3

78. ## vectors in three space

a) Describe the form of the coordinates of all points that are equidistant from the x- and y-axes. b) Describe the form of the coordinated of ll points that are equidistant from the x-, y- and z-axes.

79. ## english

6. The subject and verb should agree even when other words come between them. For example: “The students, as well as their teacher, are excited about the upcoming trip to Italy.” (Points : 1) True False

80. ## Health Information

You started working for a private insurance company before the inception of managed care. You've been talking with your co-workers about how different reimbursement was in the past. You commented that before managed care, your employer reimbursed providers

81. ## grammar

indefinite pronouns. Is it singular or plural. It was shown that aqny of the person's dreams can originate from random activities of the brain during sleep.

82. ## grammar

(Us, We) Boy Scouts are good cooks. s Us or We? I have to cross out the noun.

83. ## Health Information

Medicare and Medicaid financial issues put constraints on a. physician services. b. critical care centers. c. public hospitals. d. outpatient services.

84. ## grammar

Angela can run faster than him. I have to correct the pronoun error.

85. ## grammar

Mr. Jones and him are very good friends. is it I or he? Him is the only pronoun.

86. ## civics

what language is used to describe the roll of the senate in supreme court nominations

87. ## Psychology

What is your definition of wisdom?

88. ## Geometry

Homework Help Forum: geometry Posted by behzad on Monday, August 9, 2010 at 4:57pm. I need to find the fifth side. I have a polgon(5 sided). The distnace: A to B= 4" B to C =8" C to D = 18" D to E = 23" E to A = ? in which is 39" How do I find E to A if it

89. ## History

How did the social composition affect the political climate of the 80's

90. ## Psychology

What is your definition of wisdom?

91. ## math

corp provides issuance of 200,000 shares of common stock. 40,000 shares were originally issued and 500 were reacquired. What is the number of shares outstanding?

92. ## economics

do you agree that the Philippine should be an industrialized country, even if it is one of the agricultural country? justify and give scenario.

93. ## algebra

How would you explain to your friend why the quotient of x^8 and x^2 is x^6 and not x^4?

Identify the type of subordinate clause in the following sentence. The guy who ran out of the clinic is running late. noun adjective adverb

95. ## algebra

In words! How would you explain to your friend why the quotient of x^8 and x^2 is x^6 and not x^4?

96. ## science

what is your opinion on the Koyoto Protocol? do you believe we should participate or not

97. ## math

corp provides issuance of 200,000 shares of common stock. 40,000 shares were originally issued and 500 were reacquired. What is the number of shares outstanding?

98. ## math

B= K+v/2 how do I solve this for K

99. ## algebra

explain in your own words how to factor a polynomial of the the form ax^2 + bx+c when A is not equal to 1. Describe both the grouping approch as well as reversing FOIL. Contrast the two methods by means of an example. Which is the best approach and why>

100. ## organization

Develop at least one process evaluation measure for the Consultation and Education Department at Greenby Community Mental Health Center to display the program’s effectiveness and efficiency.

101. ## organization

One outcome evaluation measure for the Consultation and Education Department at Greenby Community Mental Health Center to display the program’s effectiveness and efficiency.

102. ## statistics

In Los Angeles there are three network television stations, each with it own evening news program from 6:00 to 6:30 PM. According to a report in this morning’s local newspaper, a random sample of 150 viewers last night revealed 53 watched the news on

103. ## math

a full time student is employed. her hourly rate is \$5.25. One week she worked 33 1/4. What are the earnings for the week?

104. ## religion

how many sponsorers can you have for confirmation?

105. ## College Algebra

15. Write the 5th term of (3x + 2y)7.

106. ## College Algebra

Find the sum of the infinite geometric series given by ∑_(k=1)^∞▒〖(2/9)^k.〗

107. ## Health Information

The ability to accurately predict yearly expenses was one reason that large companies decided to a. offer HMO programs b. enroll in managed care plans c. self-insure their employees d. offer medical spending plans

What is the origin and subsequent evolution of personal and workplace values? What is the meaning or what they are asking for?