# Questions Asked onOctober 29, 2006

1. ## Algebra

One number is 3 times another. If the sum of their reciprocals is 4, find the two numbers. __ 15 this is supposed to be 4 over 15 Let the smaller number be x. The two numbers are then x and 3x. You have only one unknown now. 1/x + 1/(3x) = 4 4/(3x) = 4

2. ## Physics- i need to know how to do these problems

Two projectiles are launched from the ground, and both reach the same vertical height. However, projectile B travels twice the horizontal distance as projectile A before hitting the ground. a. How large is the vertical component of the initial velocity of

3. ## ap chemistry

what does H2 + CH2 form? (what product?) What is CH2? There is a (CH)2 but I don't know of a CH2. Yes, I meant to ask: What product is formed by this reaction: H2 + (CH)2 My original answer is gone but I will repost. (CH)2 is HCtriplebondCH which is

4. ## physics

the cables of a suspension bridge as well as the elements of many man-made structures are designed to behave elastically. can anyone briefly explain to me why it is absolutely necessary that such elements function elastically? Bridges and other man-made

5. ## ap chemistry

What product is formed by this reaction: H2 + (CH)2 Answered the original post below.

6. ## Microeconomics :o)

"In both monopoly and perfect competition the profit maximising output is at the level at which MR = MC, but only in the latter is the optimum output level such that P = MC" Explain the above statement by comparing the model of perfect competition with

7. ## Physics (Elastic Collision)

A 0.400 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. (a) What is the mass of the second ball? (b) What fraction of the original kinetic

8. ## Weighted Averages

I am assuming this is a 1,000g mixture. 42% H3BO3 = 420g H3BO3/(420g H3BO3+580g H2O)= 0.42 by mass. 420g H3BO3/(420g H3BO3+580g H2O+Xg H2O)= 0.06 Solve for X Check my thinking. Check my work. There is an alternative approach. You want to dilute it by a

9. ## chemistry HELP

Use the following information to identify element A and compound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a

10. ## possible functions

How to find all possible functions of f with a given derivative. 1. f'(x) = 2 2. f'(x) = sinx Integrate each function. Remember that there can be an arbitrarcontant C added to each integral. 1. f(x) = x + C 2. f(x) = -cos x + C We haven't learned

x= 6/4

12. ## quick accounting question

In trial balances, can the account number be on the right side? Thank you for using the Jiskha Homework Help Forum. I have always followed the format of: ACCOUNT DEBIT CREDIT

13. ## math

1. x-3 7x-3x = 4 x -6 turns into +6 so 4x=12 x=3 2. 13=5-13+3x 13=-8 +3x 21 = 3x x=7 3. x+x+x+3x+2-6 = 31 6x -4 = 31 6x=35 = 5.83 (are you sure its 3 x's?) 5. 5-t-t=-1 5-2t=-1 -2t = -6 t= 3

14. ## philosphy

It doesn't snow in jamica .because that's in the caribbean,and it never snows anywhere in the caribbean Do you have a question about this syllogism? It never snows anywhere in the Caribbean Jamaica is in the Caribbean. Therefore, it doesn't snow in

15. ## Chemistry

What is the precipitate of calcium nitrate, Ca(NO3)2, and sodium chloride, NaCl?? Sodium nitrate and calcium chloride are both soluble in water.

16. ## Math

75 + -63 + 7( 115/ -5 + (-8)2 ) -63 is -6 to the third power and (-8)2 is (-8)to the 2nd power. I got 15913 I think that that is wrong and my calculater wouldn't fit all the numbers so I don't know how to check it! Can you please try it so I can double

17. ## chemistry

There has to be a precipitate of calcium nitrate, Ca(NO3)2, and sodium chloride, NaCl because when I clicked none, it came out wrong. Please help http://en.wikipedia.org/wiki/Solubility check the solubility table there. Nitrates, and chlorides are soluble.

18. ## Physics

How do I do these? A passenger at an airport steps onto a moving sidewalk that is 100.0 m long and is moving at a speed of 1.5 m/s. The passenger then starts walking at a speed of 1.0 m/s in the same direction as the sidewalk is moving. What is the

19. ## More Physics

The diagram below indicates three positions to which a woman travels. She starts at position A, travels 3.0 km to the west to point B, then 6.0 km to the north to point C. She then backtracks, and travels 2.0 km to the south to point D. a) What is the

20. ## Probability

This is an example question, but I'm not sure how my instructor came up with the answer. Could anyone explain in detail please. Among the contestants in a competition are 49 women and 29 men. If 5 winners are randomly selected, what is the probability that

21. ## geography

whr do cattles and sheep live like in high altitudes or middle or low altitudes? Cattle need food, water, and a temperature range that does not cook, nor freeze them. So if you choose to examine an altitude, check to see if those are available. If so,

22. ## geography

are alps bigger or mountains?or wat's the difference between them? Alps are mountains in one specific geographic region. It is a historic name, there is no difference between the geography of "alps" and "mountains". need a definition of tall grass in

23. ## Probability

Find the conditional probability. Suppose one card is selected at random from an ordinary deck of 52 playing cards. Let A = event a queen is selected B = event a diamond is selected Determine P(B[A) How do you go about solving this one? I know there are 4

24. ## cellbio

How many protons are pumped into the stroma for each ATP generated during Photophosphorylation in oxygenic phototrophs? What is the maximum number of ATP molecules that can be produced in the inner membrane of the mitochondria for every one molecule of

25. ## History

I have to do a 4-6 sentence presentation on Lizzie Borden tuesday... Any ideas for a quick costume or the presentation???? Thanks, Cassidy put on a long skirt, bonnet if you can find one, braid you hair if it is long, and carry an axe. Oh, I forgot to add,

26. ## world geography

what significant event occured in Adrianople during the "fall" of the Roman Empire? please help me... thanks http://www.roman-empire.net/army/adrianople.html The Romans lost the battle due to a serious miscalculation of the enemies' calvary. See the above

As a Venezuelan business owner (you may select the specific business of your choice), you are very interested in the fact that Venezuela has recently been accepted as an associate member of MERCOSUR (July, 2004). You need to prepare your operations in view

For many global companies, China represents a very attractive market in terms of size and growth rate. Yet, it ranks lower in terms of economic freedom and higher in political risk than other country markets because it has a communist government. Despite

29. ## English

Where are some good study sights for english? I have a test and would like an aid. English is a multi-faceted subject: Literature (poems, plays, novels, short stories), grammar, and writing. So you have to be much more specific. Focus on your notes you

30. ## Retail Math

The buyer of women's gloves currently has an average inventory of \$20500, with an annual turnover rate of 4.0. Because this rate of stock turn is below the industry average, a 7.82% increase in turnover is sought. Assuming a constant level of inventory,

31. ## Social Studies

Any ideas for an opening sentence pretending to be Lizzie Borden??? tHANKS, Cass have you seen the site crime library. look it up on google and serach for lizzie borden otherwise - Lizzie Borden took an axe And gave her mother forty whacks. And when she

32. ## math

wat is the metric ladder? in order greatest to least? I am unfamiliar with the term "metric ladder." However, I suspect it is the list of the prefixes. From kilo hecto deca unit deci centi milli Note that there are a number of prefixes both above and below

33. ## Math help plz

Identify three different situations where you could apply the Pythagorean Theorem. help.. thank u The Pythagorean Theorem describes a right-triangle. Therefore it can be applied anywhere a triangle exists.

34. ## Math

I want to know how do find a percent of something, just in general-the formula or whatever, and how to make something into a fraction. Percent= piece/whole * 100 So...something like 439 divided by 612x100? (That's not the actual problem, though) yes that

35. ## math

u know how deka and deci are on the metric scale?well wat if the question is convert 100 dm into (answer)Dm? I assume you are using Dm for decameters. The correct abbr. is da. Here is what I do. kilo hecto deca unit, meter, liter, second, etc deci centi

36. ## math

|(x-3)/(x+5)|< 2 i've asked so many ppl, but they all give me different answers :( Well if the expression is less than two, and the abs function is positive, then the ratio is between 0 and 2. Lets look inside the abs function, it can be negative, because

37. ## Physics

One of the holes on a golf course lies due east of the tee. A novice golfer flubs his tee shots so that the ball lands only 64 m directly northeast of the tee. He then slices the ball 30 degrees south of east so that the ball lands in a sand trap 127 m

38. ## Government

I don't have a question but I need informaton on how to get started on a project. The assignment is to research, write, and create one amendment/segment of a documentary on Amendment #6. It says to research people, main events and issues behind the passage

39. ## social studies

What is slash and burn method? in terms of farming? what is your question in relation to? Check this site. http://en.wikipedia.org/wiki/Slash_and_burn slash and burn (during indian times) is when they slashed the bark off of trees and then burned then

40. ## Stats

Dee's store monthly sales for April, May, June are three independent random variables with means and variances as follow: April: Mean: \$9500 Variance: \$1250 May: Mean: \$7400 Variance: \$1425 June: Mean: \$8600 Variance: \$1610 a) find the mean and standard

41. ## ap chemistry

oxidation- reduction reactions What about them. Here is a site that may help you or repost with a more specific question. http://members.aol.com/profchm/redox.html

Could you please proofread my essay. Please check pronoun usage,fragments, a better title and better thesis. Here is my prompt: 1. Does the US need to reduce its dependence on Middle Eastern oil? If you argue that it does, then provide a way for this to be

43. ## english

You need to explain applications: I assumed you were describing visa applications. Should applications from certain countries be given priority? College applications? This is a sensitive subject but in my opinion, yes. I found it extremely valuable to

44. ## new forum up and running

The new forum is live. No more random error messages. Much faster searches, sorts and queries. Have a nice day. Thank you, Leo! The new forum is great!

45. ## Chemistry

Give the electron configurations of 22Ti+2 Do you know how to do this? Here is a site that will help you. Repost with specific questions about the points you don't understand.

46. ## Chem

For germanium atom write: the set of four quantum numbers for the two highest energy electrons in an atom of Ge. If you go to www.webelements.com and click on Ge, then click on the electron configuration (on the left side of the site but you may need to

47. ## Ap CHem

For how many electrons in Sr. Does A)n=4; l=1 B)n=3;l=2;ml=1 C)n=1;l=1;ml=0 You must know the variations possible. n = 1, 2, 3, ...... l = 0, 1, 2, etc up to n-1. ml=-l to +l (this is -ell to +ell) ms = +/- 1/2 Start with n = 1 and work your way up.

48. ## projects

And you ought to do some research on mordants. In this case try the experiment on each dye with and without a tablespoon of vinegar in the solution. maybe if you test water it would probably be the same, good question AND, you may wish to try more than one

49. ## math

what is a SQUARE ROOT? sqrt(x) * sqrt(x) = x sqrt(x) = x ^ (1/2) details: http://en.wikipedia.org/wiki/Square_root

50. ## AP US

Was the audience of Federalist 10 the New Yorkers? Here's the opening line of Federalist Papers # 10: "To the People of the State of New York:"

51. ## Microeconomics

"In both monopoly and perfect competition the profit maximising output is at the level at which MR = MC, but only in the latter is the optimum output level such that P = MC" Explain the above statement by comparing the model of perfect competition with

52. ## Math - Bases

What is 12 base 5? Would you just divide 12 by five and get 2 (but then what about the remainder) If you are refering to logs, 12 base 5 means log of 12 to the base 5. Call it x. 5^x = 12. x = log 12/log 5 (any log base can be used) x = 1.07918/0.69897 =

53. ## Probability

70% of all burger chain stores decided to advertise in their local newspaper. Of those chain stores that advertised in thier local newspapers, 60% had an increase in sales. Of those chain stores that did not advertise, 25% had an increase in sales. What is

54. ## Math

Yesterday I learned to solve a right triangle assuming I know the 3 angles and 1 side. I can now establish the lengths of the 2 other sides using a sine table I printed off the net. Today I hope I will learn to solve a right triangle but now I only know 1

55. ## Microeconomics

why there is an assumption "there must not be a resale between two markets" for price discrimination "There must not be aresale between the two markets"-is not an assumption under price discrimination but apre-condition for price discrimination. If there

56. ## English

in the novel Bearstone, What color is the horse, Blueboy??? If you can't tell by reading the book, maybe one of these websites can help. http://www.google.com/search?hl=en&q=bearstone&btnG=Google+Search =) Thank you for using the Jiskha Homework Help

57. ## science

How many times has the United States been to the moon? It depends on what you mean "been" to the moon. Man and unmaned? Explorer probes? You can get an idea by counting the junk left behind.

58. ## Algebra

Hi I am taking my final right now and I have a few problems I am stuck with, can you help me? 1. (x-3y)(x squared+3xy+9y squared) 2. (x+2)(x-2)(x-3) they both need to be multiplied thanks I will critique your thinking, if you post it. This is your final...

59. ## Algebra

Here are some more I have problems with. solve: 9

60. ## Algebra

sorry clicked wrong button. solve: 9 -1=x-11 ____ _____ x-5 x+5 these are supposed to be fractions Your equation is illegible, and can be interpreted too many ways. Try writing it on a single line, using parentheses for clarity and / for fractions

61. ## Algebra

solve: 3 6 ____ = _____ x-1 x+2

62. ## Algebra

last one of my problems :-) solve: square root of x-1=x-3 This is an impossibility. there must remain any mistake within the problem

63. ## news homework

(Help!) In want wed should i go to . to find the news? Graciela, are you looking for a News Website? If so, here are a couple: www.msnbc.msn.com/ www.usnews.com/ GuruBlue," Thank you so much!" thanks a lot!!!!!!!!!

64. ## Algebra

Using the index of a series as the domain and the value of the series as the range, is a series a function? Include the following in your answer: Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic