# Questions Asked onDecember 2, 2006

1. ## Math - Algebra 2

A chemical compound evaporates in a predictable way. In the first hour 1/2 of the amoun in the jar at the beginning of the hour evaporates. In the second hour 1/3 of the amount in the jar at the beginning of the second hour evaporates. In the third hour

2. ## Math - Algebra 2 some1 plz help?

in a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a

3. ## physics

Identical forces act for the same length of time on two different masses. The change in momentum of the smaller mass is A) smaller than the change in momentum of the larger mass, but not zero. B) larger than the change in momentum of the larger mass. C)

4. ## Calculus

I have to find the area of the largest possible rectangle that can be inscribed under the curve y=e^(-x^2) in the first and second quadrants. How do I do this? It is symmetrical, so one could ignore the second quadrant, and work on the largest rectangle in

5. ## physics

A constant force is applied to an object that causes a certain displacement. If the angle between the between the force and the displacement is 146 deg, then the work done by this force is A) zero B) not enough information given C) positive D) negative not

6. ## help riemann sums

the expression 1/50 (1/50 +2/50+ 3/50+ .....50/50)is a Reimann sum approximation for (everything in the parantheses is square root except the 1/50 outside the paratheses) the answer has to me the integral form so from looking at the formula in my book i

7. ## medicine

how can i solve this?prepare 150ml of a 7.5%dextrose sol.you have D5%W and D10%W. how much of each sol. is needed? I assume the 7.5 dextrose is going to be on a w/w basis also. This is really simple, no algebra needed. Since 7.5 is halfway between 5 and

8. ## AP CHEM FULL ?

This is part of a marathon problem, we have to identify the five compunds of H, N, and O described below. For each compound, I have to write a Lewis structure that is consistent with the information given. a.) All the compunds are electrolytes, although

hi what is lim as x reaches one of the function x/LN(x) is it one or does the limit it not exist. hi what is limit as x reaches one of the function x/LN(x) is it one or does the limit it not exist. Have you tried graphing it? That will tell you if the

10. ## Music

Doesn't Louis Armstrong begins "West End Blues" with a stop time? You might try browsing these 2 links:

"Keep the ball rolling" is an example of which? redundant wording complex words a cliche independent adjective Would it be a cliche? Yes

12. ## pharma medicines

a dose of beclomethasone inhalant is 200mcg twice a day. the commercial inhaler delivers 50mcg per inhalation and contains 200 inhalations.how many inhalers should be dispensed to a patient if a 60-day supply is prescribed? At 50 mcg per inhalation, 200

13. ## physics

I am to measure the deflection by contructing a post and lintel system using the dowels I have (with different diameters, which will be my variables). I want to create a chart to present my results, but I don't know what I need to measure or what to look

14. ## english

old english period and middle english period.....facts, literature, event, features Old English: http://en.wikipedia.org/wiki/Old_English_language http://www.georgetown.edu/faculty/ballc/oe/old_english.html http://www.mun.ca/Ansaxdat/vocab/wordlist.html

15. ## geology-important!

hi i am looking for geologically relevant song lyrics or poetry published after 1990. i realllly need to find this any help i would appreciate so much!!! thank you. http://www.danneyball.com/_51.htm

16. ## Math - Algebra 2

In a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a

17. ## English

Write half page for each topic. What do you feel about? or something you wish to know or learned ? in college about? 1. Test preperation. 2. Faculty expectaton. I believe this is an assignment your teacher wants YOU to write. Anyone else's opinions about

18. ## pharma medicine

you are combining 50ml of a 20%sol,150ml of a 15% sol.,and 200ml of a 35% sol.what is the final % concentration of the mixed sol. how many total grams are is the final sol? Grams total= .2*50 + .15*.15 + 200*.35 This is making a big assumption: that the

19. ## Its not English, but its GENERAL STUDIES

Write half page for each topic. What do you feel about? or something you wish to know or learned ? in college about? 1. Test preperation. 2. Faculty expectaton. I am uncertain what you want here. We will be happy to critique your writing. What do you feel

20. ## financial investment homework

Hi, My name is Franklin. I have a question on financial investment. Sue and Tom Wright are assistant professors at the local university. They each take home about \$40,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, Mike

21. ## physics

A hydrogen atom is in its n = 6 excited state. Determine, according to quantum mechanics, each of the following: (a) The total energy =eV (b) The magnitude of the maximum angular momentum the electron can have in this state =J s (c) The maximum value that

22. ## calculus

find f(x,y+k)-f(x,y)/k when f(x,y)=x^2y+2xy^2

23. ## calculus

f(x+k,y)-f(x,y)/k when f(x,y)=4x^2y

24. ## physics

I am to measure the deflection by contructing a post and lintel system using the dowels I have (with different diameters, which will be my variables). This is a system to measure the deflection under a load. I want to create a chart to present my results,

25. ## calculus

y=e^x, y=0, -1< x < 2 The area is: Exp - Exp[-1]

26. ## calculus

fine the area bounded by the graphs of y=5x^2, y=20 5 x^2 = 20 ---> x =+/-2 Area is F(2) - F(-2) where F(x) = 20x - 5/3 x^3

27. ## world history

what is the distance the Chinese explorers taveleed to reach the eastern coast of Africa. And how does it compare to Prine Henry's? You can work that out from this site. www.worldatlas.com/ Figure the distance from China to Africa, then figure the distance

28. ## Math- VERY IMP. PLZZZ HELP!

Mrs Walsh is seeking legal advice. A friend of her recommended two law firms - Legal Eagles, which charges a consultation fee of \$100 plus \$40 per hour and A-1 Attorneys, which charges a consultation fee of \$60 per hour. A) Write an equation for the cost

29. ## Math - Business Math / Accounting

A person applying for a sales position is offered an alternative salery plan. Plan A- A base salery of \$600 per month plus a commission of 4% of the gross value for the month Plan B- A base salery of \$700 per month plus a commission of 6% of the gross

30. ## Math - PLZ HELP> ASAP

Furnishing an apartment you have just graduated from HS and you and your best friend are looking to rent an apartment. The apartment you would like to rent costs 972.00 a month. You earn \$1500 a month. You share montly expenses with your roomate: rent

31. ## GS

write a half-page paragraph.WHAT IS Grading point Average (G.P.A.)? what is your opinion on it? how do you feel about it? A half-page shouldn't be difficult. Someone shall be happy to critique your writing.

32. ## Music

Isn't "In a Mellotone" an example of big band swing or small group swing? I thought it was big band swing but was told otherwise that it wasn't. Can anybody clarify. It is big band swing. Count Basie, Duke Ellington had this tune as mainstays. They

33. ## human anatomy-nervous system

I am a little confused about the action potential concept (see nervous system) I have 3 multiple-choice questions that I need help with: Which is the correct sequence of events that follows a threshold potential: 1.the membrane becomes depolarized 2.sodium

34. ## AP Chemistry HELP!!!

This is part of a marathon problem, we have to identify the five compunds of H, N, and O. As well as write a Lewis structure that is consistent with the info. PLease help I don not even understand the ? a. All the compunds are electrolytes, although not

35. ## Physics- Newton's Laws in Space

Hi! I would really appreciate it if you could help me think through these questions discussing Newton's Laws in Space... Directions: Consider the following scenarios ignoring the effects of gravity: 1. You are the capitan of a spacecraft traveling in the

36. ## Algebra...

Write the equation of a vertical line passing through the point (8,-4). Graph x=8 and see if that is what you want. I don't understand?!What do you mean? Do you know how to draw a graph? Plot X=8, y=0 x=8, y=2 x=8, y=4 and see what kind of a line you get.

37. ## Math

Simplify: 4^(-1/2) 4-1/2 = 1/41/2 = 1/2. check my work. On exponents, negative means reciprocal. 4(-1/2) means the same as 1/4(1/2) which is the same as 1/squareroot(4) so the answer is 1^4 no, of course not. The square root of 4 is 2 isn't it? so

38. ## Inter. Algebra

how do you foil 12x squared y cubed?

39. ## PRoof reasons in Algebra

Statements Reasons 1. 3x - 7 = -4 1. 2. 3x - 7 + 7 = -4 + 7 2. 3. 3x + 0 = -4 + 7 3. 4. 3x + 0 = 3 4. 5. 3x = 3 5. 6. (1/3) 3x = 3 (1/3) 6. 7. (1/3) 3x = 1 7. 8. 1x = 1 8. 9. x = 1 9.

40. ## Inter. Algebra

what is the answer to 12x squared y cubed /2xy squared +6xy * y squared +6y+9 /3y cubed +9y squared? You have not written an equation, only an algebraic function, with two variables. You need to add parentheses to clarify the order of operations. There is

41. ## REPOST!PLZ HELP!ALGEBRA!

You give up too easily. How? I posted how to get the answer below at the original question. OK but I replied... As did I. Well...I replied...again... Maybe you do understand this for horizontal lines. If you interchange x with y, vertical and horizontal

42. ## Inter. Algebra

what is the answer to 2 square root of 18x? Do you mean 2*(18x)1/2? What does it equal. What are we to do with the problem? DrBob222, My problem states 2 square root sign & 18x underneth it. If you could help me with this problem I'd really appreciate it.

43. ## English

Here goes my essay on interpersonal communication: being aware of of this fact, I proceed to find out what are my nonverbal listening pattern. To do so, I prepared a 500 word speech to be presened in less than half an hour to a small group of my church. In

44. ## Inter. Algebra

can you simplify 12x squared y cubed?

45. ## Reasons in Proof

*I KNow only #6 which is relfexive,I think...You have to find the reasons for this...* 1. 3x - 7 = -4 2. 3x - 7 + 7 = -4 + 7 3. 3x + 0 = -4 + 7 4. 3x + 0 = 3 5. 3x = 3 6. (1/3) 3x = 3 (1/3) 7. (1/3) 3x = 1 8. 1x = 1 9. x = 1

46. ## Inter. Algebra

what is the answer to 2i to the 5th power? i^2 = -1 --> i^4 = 1 ---> i^5 = i (2i)^5 = 32 i thanks for the info!

47. ## A Math Equation...Plz Help...

|2x + 4| is always larger than or equal to zero. This means that the left hand side of the equation is always 6 or less, so there are no solutions. 6 - 3|2x + 4| = 12 So I just put NO Soution? No solutions, or if you have to write down the solution in the

48. ## Physical Education

I just want to know what different branched there are in taking a major in physical education. I know you can go into teaching, athletic training, but I want to know if there are any other areas. Physical tharapy, Sports Medicine, Phisiology of astronauts

49. ## Inter. Algebra

Simplify 2i to the 5th power? (2i)^5 = 2^5 * i^4 * i = 32 (-1)^2 * i = 32 i

50. ## Another Problem...PLz Help COunt Iblis

Statements Reasons 1. 3x - 7 = -4 2. 3x - 7 + 7 = -4 + 7 3. 3x + 0 = -4 + 7 4. 3x + 0 = 3 5. 3x = 3 6. (1/3) 3x = 3 (1/3) 7. (1/3) 3x = 1 8. 1x = 1 9. x = 1 Is this problem about explaining each step? yeah like you have to write the property of each Are

51. ## Inter. Algebra

Another problem plz help Count Iblis. How do you solve 5/x+2 + 2x/x squared - 4= 3/x-2? 5/x+2 + 2x/x squared - 4= 3/x-2 You write the term: 2x/x squared as 2/x the equation becomes: 5/x+2 + 2/x - 4= 3/x-2 4/x = 0 This equation has no solutions. It is only

If 3x - 7 = -4, then x = 1. Write the hypotheses of this statement *Also are you still going to elp me with my other problem?

53. ## Inter. Algebra

Count Iblis what is the answer to 2 square root sign 18x? The instructions say to simplify or reduce. 2*(18x)1/2= 2*(9*2)1/2= 2*3(2)1/2= 6*(2)1/2 If you can leave it in this form, the above is the way to end. If you are to continue to a final answer, then,

54. ## Plz Help!I Need to find Hypotheses for prob.

If 3x - 7 = -4, then x = 1. Write the hypotheses of this statement

55. ## Biology

Use an example to describe the relationship among cells, tissues, organs, and organ systems. Do you mean analogy rather than example? If so: Picture a living organism as a city. The houses are cells, city blocks are tissues, residential areas could be

56. ## Writing

When developing a written plan, a technique in which the writer includes every detail as it occurs is called what? 1. Writing a rough draft 2. mapping out 3. outlining 4. brainstorming Would the correct answer be brainstorming? I think probably outlining

57. ## Algebra Powers

(2a^5)^3 (2a^5)^3 = 8 a^15

58. ## Inter. Algebra

Count Iblis how do you simplify 3square root sign with this underneath (3x squared y) to the third power? "3 square root sign" probably means "cube root", in which case [(3 x^2y)^3]^(1/3) = 3 x^2 y The cube root of any quantity x can be written x^(1/3)

59. ## chemistry

what is BROMIDE not mormine? "mormine" is not a chemical term at all. Are you sure you spelled it correctly? Do you mean bromine? A "bromide" is any compound made up of a positive ion combined with negative ion Br-.

60. ## federal court system/criminal justice

There is a large round up of gang members, this is a federal case but is being supported by about 50 local officers and state troopers. I need help please, coordinating the informaiton for briefing on the process at the federal court building. The briefing

61. ## Chemistry

Double Displacement Reactions ____Ca(OH)2 + _____ H3PO4 it forms calcium phosphate (Ca3 PO4 and water (HOH)

62. ## Inter. Algebra

square root sign 2x+3 - square root sign x-2 =2 In my head, I worked it as x=3. I did that because only sqr roots that are rational integers can be subtracted to give a whole number. Now, analytic method. I have no idea, I don't see a simple method in

63. ## Biology ?

Use an example to describe the relationship among cells, tissues, organs, and organ systems Do you mean analogy rather than example? If so: Picture a living organism as a city. The houses are cells, city blocks are tissues, residential areas could be

64. ## physics-- deflection

hello, again the problem is... I don't know what to measure/look for if we want to calculate deflection. From doing this project, we are to define what deflection is. As I understand your problem, you are putting a force on a horizontal cantilever. Measure

65. ## Physics help--explosion

Figure 9-56 shows a two-ended "rocket" that is initially stationary on a frictionless floor, with its center at the origin of an x axis. The rocket consists of a central block C (of mass M = 6.00 kg) and blocks L and R (each of mass m = 2.90 kg) on the

66. ## science

What food is a common ingredient of dynamite?