# Questions Asked onMarch 14, 2008

1. ## trig

eliminate the parameter t from the following x = 4 sin t y= 7 cos t sketch the graph

2. ## chemistry

The solubility of the oxidizing agent potassium permanganate is 7.1 g per 100.0 g of water at 25° C. What is the mole fraction of potassium permanganate (KMn04) in this saturated solution? What is the molality of the potassium permanganate solution?

3. ## word problem

Working together, Larry, Moe and Curly can paint an elephant in 3 minutes. Working alone, it would take Larry 10 minutes or Moe 6 minutes to paint the elephant. How long would it take Curly to paint the elephant if he worked alone? Thanks.

4. ## Chemistry - Science

My question is is petrol , Kerosene , oil and Naptha all hydrocarbons which means that they all contain only hydrogen and carbon ? and nothing else?

5. ## math

what do you get when you cross two ducks with a match?

6. ## math

what do you get when you cross a stick of dynamite with a lemon pie?

7. ## Discrete Math: Equations of a Line

Find parametric equations for the line that passes through the point (0, -1, 1) and the midpoint of the line segment from (2, 3, -2) to (4, -1, 5). I don't know how to solve this problem.

8. ## trig

eliminate the parameter t from the following x = 9sin t y = 9cos t

9. ## pre-algebra

Mrs. Boyd went shopping at city center Mall. she parked her car in the parking garage. The cost for parking was \$1.00 for the first hour and \$0.75 for each additional 1/2 hour. Mrs. Boyd paid \$4.75 for parking. Write an equation to find how long Mrs. Boyd

10. ## science

Im doing my resistance of a wire coursework. If a wire is longer why does the voltage increase and the current decrease?

11. ## managerial economics

When McDonald's Corp. reduced the price of its Big Mac by 75% if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its US sales growth. It didn't. Within

12. ## ETH

The final project for ETH 125 is a 1,400- to 1,750-word autobiographical research paper on race in your community. The CheckPoints and assignments in class are designed to stimulate your awareness of cultural diversity issues, so, as you craft your final

13. ## chemistry

According to Raoult's law, which statement is false? a. The vapor pressure of a solvent over a solution decreases as its mole fraction increases. b. The solubility of a gas increases as the temperature decreases. c. The vapor pressure of a solvent over a

14. ## Science

Sucrose and glucose contain the elements carbon, oxygen, and hydrogen. What kind of elements are these?

15. ## Algebra HELP!

Simplify expression 81^1/4 =(4 sqroot81) = (3)

What are some differences between the book "Return to Laughter" and "Things Fall Apart?"

17. ## geometry

In right triangle ABC, angle C=90 degrees, AC = 3 and CB =4. If D is on segment AB and DB = 2, find the distance from D to C.

18. ## government

why does a member of congress vote as he or she does? like their race, gender, all that stuff. and where does the true power of congress lie?

19. ## math

0k i don't know the answer for these percents, decimals, and fractions. You have to change decimals to percents, fractions to decimals, and percents to fractions. 0.23 3/100 32 1/2% 0.25 3/5 75% 1/8 0.835 10% 95% 4% 120% 0.3333.... 1.05 1/6 If you can

20. ## Chemistry - please this is urgent

To a calorimeter containing 41.80g of water at 29.95oC, 11.7999 of a salt was added with stirring. As the salt dissolved, the temperature rapidly changed to 37.85oC before slowly returning to room temperature. 1. Calculate the Heat of Solution. Given that

asked by girl who needs help in chemistry right now

Please check these out for me, if I am correct: Match the following statements with SN1 or SN2 reactions: 1) The order of reactivity in alkyl halides is methyl>primary>secondary>tertiary 2) There is an intermediate carbocation 3) The rate-limiting step

Does a minor's duty of restitution supercedes duty of restoration?

23. ## Math

Hi SOCK is a parrallelogram .through a variable point H of[SC] draw the parallel to [OS]which cuts [SK]in E and [OC] in F. the parallel to [OC]cuts [OS]in M and [KC]in N. Find the locus of I midpoint of [HM].

24. ## biology

what is a microscope who uses a microscpe when was the microscpe discovered who discovered the microscope

25. ## naturalsciences

what is a microscope

26. ## Economics

i have the following essay to do and need help...Track interest rate changes in the euro zone over the past five years and analyse why the changes were brought about. See if this enabled the European governments to hit its inflation target.

27. ## Calculus - Partial Fractions

What is the integral of 7e^(7t) Divided By e^14t+13e^7t+36 Using partial fractions

28. ## Geography

What government imposed barriers stop or hinder the export of automobiles? "export" as in shipping to other countries i think?!

29. ## algebra

How do you solve this problem? 5y + 4y ¡Ü -54

30. ## chem.

A closed gas system at 855K has a colume of 6060mL and pressure of 935 mmHg. If the temp. is increased to 950.0 celcius , the volume decreases to 3910mL. What is the resulting pressure? Express answer in kPa. Is 202,000,000kPa right?

31. ## trig

Write an expression that gives all solutions to the equation sin x + cos x = - radical 2

32. ## algebra

Can someone show me how to graph this equation by graphing? 5x-4y=-8 4y-5x=8

33. ## algebra

Can you show me how to solve this problem? 5y + 4y ¡Ü -54

34. ## SCIENCE

HOW MANY PEOPLE DOES IT TAKE TO BUILD A GREEN ROOF?

35. ## algebra

I am looking for a perpendicular line. I'd appreciate ir if you could tell me if I'm on the right track. I am given y=-5x + 4 and know that a perpendicular line passes through (3,5). I think the slope of this line would be 1/5 so it would go up (rise) 1,

36. ## Physics

An object is projected at an angle of 53.1degrees above the horizontal at a speed of 50m/s. Sometime later it enters a narrow tube positioned at an angle of 45degrees to the vertical. Determine: a) The initial horizontal and vertical components of

37. ## English expression

The family is the base unit of our society. Let's learn the expressions of understanding family relationship and of introducing family. 1. Realistic Information(family) 2. Comparison 3. Describing the fact How do you describe other persons' appearances?

38. ## History

a.One way that opposition to civil War was suppressed was the denial of the right of_________ b.A _______ was an area set aside exclusively for Native American Tribes. c.A_________ is a place set up to provide housing and a standard of living for the

39. ## English expression

Let's find out who is being introduced to whom, and draw a line between them. After that introduce the friends sitting on both your sides. --------------------- Are the expressions above correct? 1. sitting on both your sides. 2. sitting on your both

40. ## English expression

What Number is Mike? He is Number 71. What number is Mike? He is number 71. Which one is correct? Do I have to capitalize number?

41. ## History

1 The Pilgeims who settled the Plymonth Colony: a.develpoed a harsh dictatorship under William Bradford. b.Created a truly democratic government for all men and women. c.Landed for the winter and planned to move to Virginia in the spring as they had

42. ## managerial economics

When McDonald's Corp. reduced the price of its Big Mac by 75% if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its US sales growth. It didn't. Within

43. ## managerial economics

Can someone explain cost structure and market structure to me please.

44. ## biology/science

i am doing a paper and i need to find the pros to embryonic stem cells I only have one reason which is medical but I need 4 more. Can anyone give me general ideas of pro arguments

45. ## pre-algebra

can someone check if this inequality is solve right 5x + 3 >= 28 -3 -3 5x >= 25 5 5 x

46. ## Calculus - Anti-Derivatives

How would you find the Integral of (cos(x\8))^3, defined from -(4 x pi)/3) to (4 x pi)/3)

47. ## maths

John is making cakes with nuts. He can choose between 4 flavors of cakes, 3 colors of frosting, and 2 kinds of nuts. He chooses one flavor, one color and one kind of nut. How many different cupcakes could be made?

48. ## economics

What fiscal, monetary, and supply-side policies do you believe are currently needed in the US to maintain economic growth, employment, and stable prices. Be specific and support your answer.

49. ## Misc.

Our English teacher has been helping us work on a contest for the past month. She has bought us pizza, brought food for us, and even allowed us to miss her class. She has really been a great help and we want to give her a present... Any Ideas? She likes to

50. ## economics

When Mother Theresa accepted the Nobel prize for Peace in 1979 and decided to use the \$190,000 award to construct a leprosarium, was she acting in her own interest? Was she behaving selfishly? Was she following economic principles? Explain.

51. ## pre-algebra

Shannon put \$ 7,000 in a 5 year CD that paid 8% interest per year. Malcolm put \$6,000 in a 5 year CD that paid 10% interest. What was the balance of each person's account at the end of the 5 years? Who made more money and how much more did they make? (Use

52. ## ETH

I have the same problem as all of you all. But how am I supposed to cite the paper??????? Please help!!!!!!!!

53. ## Calculus - Integrals

I know I've probably flooded the site or something (Sorry if I have), it's just that these problems aren't similar to anything I've reviewed in class. I've got two more questions, then maybe 1 or 2 more coming. That's all I can see in the future, anyhow.

54. ## science

one basic step to reduce a combination circuit to its simplest form is to solve for each?

55. ## science

what is one basic step to reduce a combination circuit to its simplest form

56. ## chemistry

What is the molarity of a solution of 10% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL.

2. Scaling Study Develop a short questionnaire (five to ten questions) and distribute it to at least ten people. Use at least two different types of questions in the survey. Analyze the responses and comment on the validity and reliability of your

58. ## History-Civil War

Why was the fishhook formation in the battle of Gettysburg a strong position for the Union forces?Thanks

59. ## German

HOw would I say "Dear son" and "Love from" in German?

60. ## ETH 125

Post a 200- to 300-word summary of a current issue between Native Americans and the federal government. Identify the legislation that you think is linked to the issue, and explain why you think there is a connection.

61. ## Math

I have forgotten how to do ratios...Please help. The standard ratio of(number of treatments) and (total mL dose) are 3.5 to 2mL. If only 2 treatments are given, how many total mL doses are given?

62. ## IT 221

How can a project manager be sure that he or she has chosen the correct metrics to assess project performance? Give at least three examples.

63. ## IT 221

Create a 200- to 300-word response to the following scenario: During the implementation phase of a project, as a project manager you are facing many team issues (such as family issues and interpersonal conflicts) and these issues are creating risks that

64. ## History-Civil War

What advantage did Meade have operating in a region friendly to the Union cause?

65. ## finance *repost*

According to the Value Line Investment Survey, the growth rate in dividends for JCPenney for the previous 10 years has been -10 percent. If investors feel this growth rate will continue, what is the required return for JCPenney stock? Does this number make

66. ## managerial finance

The growth rate in dividends for IBM for the next five years is expected to be 19 percent. Suppose IBM meets this growth rate in dividends for the next five years and then the dividend growth rate falls to 5 percent indefinately. Assume investors require