Questions Asked on
February 13, 2009

  1. Economics

    A monopoly produces widgets at a marginal cost of $8 per unit and zero fixed costs. It faces an inverse demand function given by P = 38 - Q. What are the profits of the monopoly in equilibrium? A. $225 B. $120 C. $345 D. None of the statements associated

    asked by Carol
  2. chem

    Okay so Im doing a lab on preparation of K3[Fe(C2O4)3]*3H2O The final weight I got 2.835g. How can I find the theoretical yield of this? What do I need?

    asked by Natash
  3. IELTS

    Too much emphasis is placed on testing these days. The need to prepare for tests and examinations is a restriction on teachers and also exerts unnecessary pressure on young learners. To what extent do you agree or disagree? 250 word

    asked by KHALID
  4. statistics

    An instant lottery scratch-off game offers a 0.04 probability of winning on any one play. Plays are independent of each other. If you play 7 times, what is the probability you win at least once?

    asked by diana
  5. chemistry... please help!

    Pure glacial acetic acid HC2H3O2 has a freezing point of 16.62 degrees C. Its freezing point depression constant is Kf=3.57 Cm^-1. A solution was made by taking 9.755 g of an unknown non-electrolyte and dissolving it in 90.50 g of glacial acetic acid. The

    asked by Anonymous
  6. Microeconomics

    1. A country's consumption possibilities frontier can be outside its production possibilities frontier if a. the country engages in trade. b. the citizens of the country have a greater desire to consume goods and services than do the citizens of other

    asked by Bob
  7. Statistics

    Suppose that the number of customers who enter a supermarket each hour is normally distributed with a mean of 540 and a standard deviation of 150. The supermarket is open 14 hours per day. What is the probability that the total number of customers who

    asked by June
  8. Physics

    Under what condition can a force act on an object and yet do no work on that object? A. The object moves with no acceleration. B. The object does not move. C. The net force on the object is 0. D. The force operates under constant power. E. None of the

    asked by Alex
  9. physics

    please help find the resultant of these two vectors: 2.00 * 10^2 units due east and 4.00 * 10^2 units 30.0degrees north of west please show me step by step how to do this thanks for any help!

    asked by y912f
  10. Math

    If triangle R'S'T' is a dilation of triangle RST, what would be the rest of the coordinates for triangle R'S'T? R (-2,-3) S (0,2) T (2,-3) R'(-6,-9) S'( , ) T' ( , )

    asked by Angie
  11. IELTS

    Too much emphasis is placed on testing these days. The need to prepare for tests and examinations is a restriction on teachers and also exerts unnecessary pressure on young learners. To what extent do you agree or disagree? 250 word

    asked by KHALID
  12. Physics/Math help please

    Two particles with positive charges q1 and q2 are separated by a distance s. I got up to here: (kq1)/x^2 = (kq2)/(s-x)^2 I now have to solve for x by cross multiplying and using the quadratic equation but I can't seem to isolate x without it being canceled

    asked by Sam
  13. History

    How long ago did the first human culture, involving villages and a sense of history, develop? A. about 1 billion years ago B. a few million years ago C. 100,000 to 200,000 years ago D. about 10,000 years ago E. about 1,000 years ago Thanks!

    asked by MC
  14. 4th grade

    I don't get the notes on the bass clef I get confused do any of you people know all of the notes

    asked by Nicholas
  15. science

    the tendency of the matter to resist change in motion is called?

    asked by Sam
  16. Critical thinking

    what kind of fallacy is this statementLetter to the editor: “Andrea Keene’s selective morality is once again showing through in her July 15 letter. This time she expresses her abhorrence of abortion. But how we see only what we choose to see! I wonder

    asked by OdIzzle
  17. Accounting

    The Dec. 31, 2001, balance sheet includes the following items: 9% bonds payable due 12/31/2010 $800,000 Discount on bonds payable $21,600 The bonds were issued on December 31, 2000, at 97, with interest payable on June 30 and December 31 of each year. The

    asked by Cindy
  18. Child Care

    Two-year-old Gerld is starting at your day care center tomorrow. His mother is going back to work for the first time since Gerald was born. You have four groups at the center. In which group should you place Gerald? A. A group of six toddlers. B. A grouop

    asked by Ann
  19. FRENCH

    Bonjour! Est-ce qu'on dit: "je ne parle que anglais" OR "je ne parle que l'anglais"??? I am still not sure when to say "français" and when "le français". e.g. in my book it says: "Oui, madame, il parle bien le français" why couldn't one say: "Il parle

    asked by E.G.
  20. CHEM URGENT

    liquid methanol, CH3OH is being prepared to be poured into a beaker of water. (THERE CAN BE MORE THAN ONE ANSWER FOR Q1-3) 1) What intermolecular forces are broken in the methanol when these substances are mixed? -hydrogen-bonding -dispersion forces

    asked by jerry
  21. Calculus

    Am I allowed to multiply an entire integral (on the inside AND the outside) by negative 1? I have a potential trig identity in the integral that will only work if it's multiplied by -1...

    asked by Hannah
  22. 11th grade

    x/12=5/3

    asked by maria
  23. PSYCHOLOGY

    Lets say If a doctor publishes a study which has been replicated, many times and using many students each time found that time spend doing homework strongly predicts college success. What are the variables, and if the research was experimental how did this

    asked by le
  24. HSM 240

    I have a final project due pretty soon. It asks what the demographics are. What does demographics mean?

    asked by Brooke
  25. Quantitative reasoning for business

    What is the present value of nine annual cash payments of $4,000, to be paid at the end of each year using an interest rate of 6%?

    asked by m.k. combs
  26. CHEM please HELP

    The boiling point elevation of a solution consisting of 2.12 g of a nonvolatile solute in 97.4 g of benzene is 0.6602 oC. What is the molecular weight of the unknown solute? i have no idea how to solve this question

    asked by jerry
  27. computers

    Your final project incorporates many of the key concepts you have learned about in this course. In a 1,400- to 1,750-word paper, create a systems development plan for Bead Bar, according to the specifications below. Use the seven standard systems

    asked by hg1985
  28. Chem: primitive cubic packing

    Answer the following for a primitive cubic unit cell. For the type of packing answer, use letters (starting with A, then B, then C) without spaces and separated by hypens (-) to indicate the layers of solid present. type of packing =? type of holes =? #

    asked by Anonymous
  29. Calculus

    How do you integrate [(x^2)(cos(2(x^3)))]? I tried to integrate by parts but I'm going in circles yet again...

    asked by Hannah
  30. Calculus

    Evaluate the indefinite integral: 8x-x^2. I got this but I the homework system says its wrong:sqrt((-x-8)x)/(2*sqrt(x-8)*sqrt(x))*(((sqrt(x-8)*(x-4)*sqrt(x))-32*log(sqrt(x-8)+sqrt(x))

    asked by Shannon
  31. Chemistry Web Quest

    How do you recover the dissolved solid in a solution?

    asked by Lyne
  32. music

    how we named the note that is above the first line on the bass clef?

    asked by Nicholas
  33. accounting

    In 2002, construction work began on a three-year contract at a price of $7,525,000. The firm uses the percentage-of-completion method of financial accounting purposes. The income to be recognized each year is based on the proportion of cost incurred to the

    asked by Cindy
  34. Accounting

    In 2000, purchased land for $5,600,000 that had a natural resource supply estimated at 4,000,000 tons. When the natural resources are removed, the land has an estimated value of $640,000. The required restoration cost for the property is estimated to be

    asked by Cindy
  35. French

    what does wee wee mean?

    asked by katy
  36. Health

    Is it harmful for a pregnant woman to be around a cat? I've heard some things about it being bad for the baby or the mother: is this true? Thanks -MC

    asked by mysterychicken
  37. s.s

    What are some synonyms for one and another?

    asked by katy
  38. Psychology

    Any input to my questions in psychology?

    asked by le
  39. social studies

    Scientists think adding CO2 to the atmosphere will affect the earth's climate. What effect is predicted?

    asked by nathaniel
  40. Social Studies

    How would I draw the first step in the due process of law which is police must have a warrant. Could you give me a link or you can explain it. Thanks so much

    asked by Candy girl
  41. CHEM HELP

    The partial pressure of water above a solution of water and a nonvolatile solute at 25oC is 19.2 mm Hg. What is the mole fraction of the solute please help....I really don't know how I am supposed to solve this question. I know that Partial pressure of the

    asked by jerry
  42. Chem: primitive cubic packing

    Answer the following for a primitive cubic unit cell. type of packing =? type of holes =? # atoms / 1 unit cell = 1 coordination # =6 I got the last two, but can't figure out the first 2 Any help would be appreciated

    asked by Anonymous
  43. science

    suppose a cube of jell-o is cut into two pieces. What property stays the same when comparing the original piece with one of the new pieces? a. density b. mass c. volume d. surface area

    asked by Lorena
  44. physics

    A rock is dropped from a very tall tower. If it takes 4.1 s for the rock to reach the ground, what is the height of the tower?

    asked by kj
  45. physics

    4.8mF capacitor in series with 500 ohm resistor is connected, via a switch, to a 12V battery. What is the current through the resistor at t=1.0s after the switch is closed? I tried doing I^2R = 1/2 CV^2 and solving for I but the answer wasn't correct. can

    asked by lauren
  46. French

    How did the sailing compotition La Route du Rhum get its name? Thanks

    asked by Micheal
  47. Science

    ionic compounds for the following: calcium chloride calcium oxide sodium oxide sodium carbonate aluminium carbonate calcium sulfate sodium nitrate sodium sulfate aluminium oxide aluminium hydroxide

    asked by Alpana
  48. IT 210

    I need help with Sequential and selection processing control structures Appendix G

    asked by Sue
  49. chemistry

    I need help with the following problem: Calculate the upper and lower limits of the volume (in cm^3) of a cylinder 5.2+- 0.1 centimeters long and 1.6+- 0.1 centimeters in diameter. I know I am suppose to plug the numbers in the sphere formula V= pi/4(d)

    asked by Jen
  50. mathematics

    Find the greatest number which leaves 4 when divided by 102 and leaves 3 when divided by 150. Can anyone of you can please explain me the solution for this problem in detail.

    asked by sameera
  51. social health

    If I claimed $800 to my medicare insurance and only $625 was approved, How much will the office actually received from medicare?

    asked by ztan
  52. s.s

    Please tell me all you know about Singapore!

    asked by katy
  53. Chemistry

    What is the difference between natural uranium and enriched uranium?

    asked by Amy
  54. 5th grade

    how do you get rid of bad luck?

    asked by katy
  55. math

    whats 4-n=1234321

    asked by *****
  56. english

    He seem'd to find his way without his eyes; For out o' doors he went without their helps, And, to the last, bended their light on me. 'But who, O, who had seen the mobled queen--' By heaven, it is as proper to our age To cast beyond ourselves in our

    asked by Anonymous
  57. ETH125

    Are Native Americans successfully assimilating into the American society?

    asked by Tammy
  58. Math

    Hi: I was wondering how I would even start to solve a problem like this. Solve for x1, x2, x3, and x4: x1x2+x1+x2=524 x2x3+x2+x3=146 x3x4+x3+x4=104 Thanks, Manny

    asked by Manny
  59. cook

    5 oz (150g) Butter - softened 5 oz (150g) superfine (castor) sugar 6 oz (175g) self-raising flour Can you please help me convert this recipe to cups or tablespoons(ect.)

    asked by Gabs
  60. French - SraJMcGin

    Instead of "je ne parle qu'anglais" could I also say "je parle seulment anglais"? Which would be more correct? And if I would like to say "I do not speak any english" would I say: "je ne parle aucun anglais"??? Thank you again for all your patience with

    asked by E.G.
  61. VOCAB

    pawn: make a sentence does this work? my dad always said, "dont be a pawn, be your own boss."

    asked by Spencer
  62. physics

    if there is a circuit that has a battery and a lightbulb: will an electron have more electric potential energy on the positive side of the battery or negative side of the battery? - i think its same because conservation of energy. energy gained by electron

    asked by stacey
  63. Plant Physiology

    Hey i have a mid term today at 3 , and this one sample question my prof posted online. If someone can please show me how to get the answers i would really appreciate it: A plant cell is found to have a Ψs = - 0.7 MPa and a Ψp = 0.5 MPa. Is this cell

    asked by Saira
  64. Government

    How has the clean air act increased the power of the federal government relative to the power of the state governments?

    asked by Joel
  65. Mathematics

    A number when divided by 14 or 13 leaves a remainder 3. Find the least possible value of that number?

    asked by sameera
  66. s.s

    What is singapore known to export?

    asked by katy
  67. health

    what is a healthy diet during pregnancy

    asked by y912f
  68. s.s

    What kinds of cars do they export in singapore?

    asked by katy
  69. s.s

    why does singapore have so many religions?

    asked by katy
  70. Accounting

    Take a publicly traded company (Nestle -- see attached) that conducts business in both the U.S. and in a foreign country and discuss the challenges the company faces with respect to GAAP accounting requirement differences because they do business in a

    asked by Mary
  71. government

    what is the government currently doing to help our economy? what implications foes the proposed economic stimulas package have on people of this country. US

    asked by Blake
  72. Chemistry

    What are some advantages of using nuclear power as a source of electricity?

    asked by Amy
  73. 5th grade

    In geometry, what are the shapes of nature,then describe 2 natural objects for each including the divisions of branch. this is my daughters project due monday. i have looked all over the internet and i've almost gave up. please help.

    asked by glynn
  74. Science

    I am having trouble finding a 7-letter word for the type of light a firefly makes, and a 10 letter word for the type of light a lightbulb makes.

    asked by Christopher
  75. Math

    What is the rule for dilation? Like, for translation, you add/subtract the units being translated from the x and y value. what do you do for dilation??

    asked by Angie
  76. Social Studies

    Could I get your opinion on something, which law would you repeal in your state? I'm not going to take your answer but I just need some ideas. Thanks! God Bless, and happy Valentine's day!!

    asked by Candy girl
  77. criminal procedures

    which test Frye or Daubert is more appropriate, and the potential effect this testimony could have on a given test.

    asked by Ree
  78. chemistry

    ii) What is the formula of 1, 3-butadiene

    asked by c
  79. englis 102

    3 examples in antigone that reveal Creons stubborn pride

    asked by jackie
  80. Psychology

    Any Psychology tutors teachers out there?

    asked by le
  81. Social Studies

    When the statement says "people are told they have a right to have a lawyer," in the due process of law who are the people referring to?

    asked by Candy girl
  82. science

    I need some suggestions to help me get started on designing a robot for my 1st grade class.

    asked by Leisha
  83. integracted science

    which energy source produces no pollutants? a) geothermal steam b)hydrogen c)nuclear d)none of the choices

    asked by Lorena
  84. Calculus

    How do I go about integrating sin[x^(1/3)]dx?? I tried doing integration by parts and I'm going in circles.

    asked by Hannah