Questions Asked on
August 18, 2007

  1. Algebra

    I have a few questions that I need help with. Solve the radical equation, and check all proposed solutions. 5. x- square root 3x-2=4 I don't understand this problem. Solve and check the equation. 10. (x^2+14x+49)^3/4-20=7 would I have to multiply each

    asked by Brit
  2. algebra

    1)Write the expression 9n^6+7n^3-6 in quadratic form,if possible A.9(n^3)^3+7n^3-6 B.9(n^2)^3+7(n^2)-6 C.9(n^3)^2+7(n^3)-6 D.not possible I'm thinking C on this one but im not sure 2)solve b^4+2b^2-24=0 A.-2,-square root of 6,square root of 6,2 B.-square

    asked by Marissa
  3. physics

    A bicycle chain is wrapped around a rear sprocket (r = 0.039m) and a front sprocket (r = 0.10m). The chain moves with a speed of 1.4m/s around the sprockets, while the bike moves at a constant velocity. Find the magnitude of the acceleration of a chainlink

    asked by manny
  4. poetry

    a definition of formal poetry is verse that I think you're after definition #3 here. Then look up "meter" and "verse" -- =) Thank you for using the

    asked by Anonymous
  5. Math inequalitites

    Hi, I need some help with some inequalitites. Thanks!! Use graphs to find the set. 1.(-9,0) intersection [-4,] I got [-4,0) 2. (-9,0) U [-4,10] I got (-9,10] Solve the linear inequality. Other than (empty set, use interval notation to express the solution

    asked by Christie
  6. Science(chem)

    This question relates to what someone posted below... It was explained to them that a reducing agent is oxidized when it reduces? I would like to get this concept straightened out in my head. I originally got this concept when I did gen chem but I have

    asked by ~christina~
  7. microeconomics

    If for a firm MRP > MFC, then the firm: a. is maximizing profits and should continue producing its current output. b. is maximizing factor costs and therefore is maximizing profits. c. should produce more output by increasing the quantity of factors

    asked by sheila
  8. chemistry

    Why is caffeine only soluble in water that is strongly acidic? Is that true? I think the solubility of caffeine is about 180 mg/L in water @ 100 Celsius. I guess it depends upon your definition of solubility. At any rate, look at the structure of caffeine.

    asked by manny
  9. Algebra II

    I need some help with some problems as well as need some checked. Could you please help me? Thanks! 1. How do you graph y=1/x 2. How do I the x and y intecepts using a graph? Solve and check the linear equation. 9. (-4x-2)+7=-3(x+3) I got 14 10.

    asked by Jessica
  10. science?

    It wasn't answered before and I hope I don't get reprimanded for asking again...(those sites didn't help) Are bodies fully immursed in formalin (a solution of formaldehyde, water, and methanol) when preserved? And I would assume that they're internal

    asked by ~christina~
  11. physics

    How can I calculate the spring constant given only the following: equilibrium length of spring: 10.5 cm stretched length of spring (by attaching a mass): 12.5 cm object's mass: 198.9 grams -please help me...I'm really lost... You need to assume that the

    asked by :kkk:
  12. microeconomics

    A firm that is perfectly competitve will continue to hire factor units as long as: a. MRP < MFC b. MRP > MFC c. VMP < MFC d. MC > MR

    asked by sheila
  13. Advanced Algebra

    I some problems that I need help with please. Add or subtact as indicated and write the results in standard form. 4. 6-(-5+7i)-(7-2i) Divide and express the result in standard form. --These problems I don't understand, do you have to multply the

    asked by Aly
  14. math

    The probability that a person has immunity to a particular disease is 0.3. Find the mean and standard deviation for the random variable x, the number of people who have immunity in samples of size 28. This is a binomial distribution. mean= 28*.3 standard

    asked by manny
  15. science

    out side of protien being good for cloting blood in your body what are some other benefits i can say about it. making you fat is not a benefit. Protein is the source of amino acids used for making muscle tissue. Thank you for using the Jiskha Homework Help

    asked by jean
  16. algebra

    Solve the system by graphing. 3x+y=6 3x-y=0 I'm kind of unsure about how to do this. I'm thinking I just put any point in for x and then solve for that right? you could let y=3x then substitute this value of y to the first equation...3x+3x=6 so,

    asked by KC
  17. Earth and Space Science

    Hi everyone! I am having the darndest time figuring out the answer to a test question and am wondering if anyone can shed some light and help me out. Here is the question: The temperature (the average kinetic energy of the molecules) of a star is evidenced

    asked by Missthang
  18. Business

    Heyy, so here's the question: In its 1998 annual report, Arjo Wiggins Appleton p.l.c. states that it is the world's leading manufacturere of premium papers and Europe's leading stock merchant of printing and writing papers. It manufatures a variety of

    asked by Paula
  19. microeconomics

    A monopsonistic firm, as compares to a perfectly competitive firm, pays _____ wage and hires _____ labor.

    asked by sheila
  20. math

    someone told me how to use the computer keys to make the square root sign and I lost the info, could someone tell me again? alt 251 alt 251

    asked by dee
  21. ireland

    Is a free choice of careers in ireland or is a career chosen for each person by the goverment? Ireland has free choice of careers. Just as in most of the world, Irish people can hold any job for which they are qualified. thank you for the help You're very

    asked by rachel
  22. History

    George Washington said in his farewell address that he was worried about the political party system, geographical distinctions, and alliances with foreign affairs. How have we progressed so far in each of his concerns? I think Washington's fear were

    asked by Samantha
  23. Math Word Problems

    Hi, I am having some trouble with some problems, can you please help. thanxs!!! 1. A car rental agency charges $250 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $300? -Would the equation look like: 300= 250x +

    asked by Vanessa
  24. Art... Complementary colors

    Hello, In the following question my answer is #1 is that correct? Thank You If you wan to balance complementary colors so that they'll appear static and harmonious, you need to; #1 use the proper proportions of each color. #2 work only with spilt

    asked by Mandi
  25. chemistry

    In precipitating magnesium ammonium phosphate, why can't NH4Cl be used as a substitute for NH3? Isn't pH critical? The solubility is vastly different at pH 9 versus pH 4. In addition, how do you obtain NH3 from NH4Cl? The NH3 is for pH adjustment as Bob

    asked by Smiley
  26. Reposted: chemistry for Vic

    Can anyone suggest any good online/pdf exercises that will hone my skills in being able to determine the number of 1H and 13C signals in NMR spectroscopy? Answers would also be helpful. Perhaps these will help you get started.

    asked by Writeacher
  27. math

    can you guys check if this is correct? ____________________________________ "the cross- sectional area of a circular duct is 226.865 square inches. what would be the diameter of the duct" ______________________________________ A= pi(r^2) = 226.865 in^2 r=

    asked by manny
  28. microeconomics

    Why does the marginal revenue product(MRP) curve slope downward for a perfectly competitive firm? a. because MRP=MR x MPP. After some point, as more of a factor is employes, the lower its MFC is; thus MRP declines b. Because MRP = MFC x MPP. After some

    asked by sheila
  29. ireland

    which careers are the most desired in ireland? Since 64% of Ireland's people work in service industries, these are the most desired jobs for the population. Ireland does a lot of computer and information technology.

    asked by rachel
  30. ireland

    how many hours do people typically work in week (in ireland)? Check this site for the length of the normal work week in Ireland. thanks,you have really helped me You're very welcome. I hope you enjoy your study of

    asked by rachel
  31. science

    does antioxidants help put oxegan in your blood? No. so what are they for in your? body Thank you for using the Jiskha Homework Help Forum. Here are some sites on antioxidants: 1. 2.

    asked by jean
  32. science

    I was curious about formaldehyde after reading somewhere online where this man went and drank a beer which was apparently contaminated by by formaldehyde. (He heard a story by some local that the water used was near a cemetery and thus the contaminated

    asked by ~christina~
  33. Science

    I forgot about this but now remember what I wanted to ask about. I read in a newspaper that a local girl had drank 7 cups of concentrated coffee. The result was that she had tremors, a low temperature, and a elevated heartrate. She was rushed to the

    asked by ~christina~
  34. Beginning U.S. Gov't

    I know what appellate and original jurisdiction is, but which one is used more often? Check this article. One court only hears appeals from lower courts. The other court hears all of the cases.

    asked by Christiane
  35. Math

    I have some problems that I don't understand. Please help me. Solve the formula for the specified variable. s=2ðrh + 2ðr^2 for h f= (9/5)c+32 for c A=P(1+nr) for r for H i don't know what that notation is so I'll leave that alone and maybe someone else

    asked by Samantha
  36. Pre Algebra

    Please help me with some problems. Thank you! Solve the equation by square root property. 3. 2x^2 = 26 I don't understand how to solve this problem. Solve the equation using the quadratic formula. 7. 7x^2=-8x -2 This is what I got x= -8 -or+ square root

    asked by Nikki
  37. electrodynamics - max radiation angle

    can anyone offer advice to find ƒÆmax after one has found that cosƒÆmax=[ã(1+15ƒÀ2)+1]/3ƒÀ ? I do not really understand the approximation given where ƒÀ=1-ƒÃ Thanks Sorry ƒÆ ----> theta ã -----> square root ƒÀ -----> beta ƒÃ - ----> E

    asked by manny
  38. math

    find decimal notation of -4/25 multiply numberator and denominator by 4

    asked by Anonymous
  39. Business

    Unigate is a European food and distribution group. Its businesses include Malton Foods, which manufactures pork, bacon, and cooked meats, St. Ivel which makes a range of fresh foods and dairy products and Unigate Dairies, which distributes milk. Another

    asked by Chris
  40. chem

    I have the eV values of two different materials that are being used for a high speed LEDs. I am in the dark on how to combine the two eVs. eV=6.2 for AIN and eV=3.4 for GaN. Any help would be appreciated.

    asked by manny
  41. Honor English

    Hi, I am required to connect "The Catcher in the Rye", "The Grapes of Wrath", "The Scarlet Letter", and "The Adventures of Huckleberry Finn" together via concept map. Before I attempt to do so, I could use some help identifying the key parts of each book.

    asked by Brian
  42. ireland

    what are the most common careers in ireland? Accordiing to the source linked below, Ireland's workforce is divided as follows. agriculture: 8% industry: 29% services: 64% (2002 est.)

    asked by rachel
  43. Algebra

    Divide the following: 4d9m6.10d9m6 ------------ 2d9m9

    asked by Glenda
  44. Honors Social Studies

    Describe the three key concerns that Washington had for the future of the U.S. Explain how the country has progressed in each area and give one specific example. Please see this answer that I just posted for "Samantha."

    asked by Kristin
  45. Honors Social Studies

    If you were running for President, how might the Sedition Act impact your campaign? How would YOU answer this question? You might want to refresh your memory of the Sedition Act with this article. Thanks

    asked by Kristin
  46. English

    Can someone suggest any poems that somehow encapsulates the sentiments of Huckleberry Finn" by Mark Twain? I know of none, but one process you can use that MIGHT work is this: Go to and wander around until you find something that

    asked by Lillian
  47. physics

    It is possible for the velocity of a rocket to be greater than the exhaust velocity of the gases it ejects. When that is the case, the gas velocity and momentum are in the same direction as the rocket's. How does the rocket still obtain thrust by ejecting

    asked by manny
  48. mythology

    How do you explain archetypes? (For example THE TASK in Cupid and Psyche) It's not a difficult concept. Think of it as a model from which others are made. =)

    asked by Sherry