Questions Asked on
September 23, 2007

  1. math

    This is a statistics problem. A laboratory test for the detection of a certain disease give a positive result 5 percent of the time for people who do not have the disease. The test gives a negative result 0.3 percent of the time for people who have the

    asked by Anonymous
  2. Physics

    I have some physics problems that I would like to get checked please?

    asked by Jesse
  3. please help meDr.Bob

    I would appreciate very much If you guys could show me how to approach this problem. A solution is prepared by dissolving 10.8g of ammonium sulfate in enough water to make 100.0mL of stock solution. A 10.00mL sample of this stock solution is added to

    asked by claudia
  4. government

    these are some questions i am having trouble with: 1. what margin is required to ratify treaties 2. where in the constitution is the ratification power described 3. what body has the power to impeach the president 4. what vote is required to impeach 5.

    asked by Al
  5. Physics

    The water used in many fountains is recycled. For instance, a singel water particle in a fountain travels through an 85 m system and then returns to the same point. What is the displacement of a water particle during one cycle? I don't know where to start.

    asked by Corin
  6. math

    ok i have another question.. in the square qrst and line qt is congruent to line ts and line rs is congruent to line ts, what is x? line qt=1/2(14x+8) and line rs= 6x+8 what is x?

    asked by jordan
  7. math(geometry)

    find a counterexample for the following statement. If a number is divisible by 5, then it is divisible by 10. What is the counterexample of that statement?

    asked by jordan
  8. genetics

    Assume that a cross is made between AaBb and aabb plants, and the offspring occur in the following numbers: 106 AaBb, 48 Aabb, 52 aaBb, 94 aabb. These results are consitent with which arrangement of genes?

    asked by stew
  9. physcis

    in order to determine the width of a river, a base line of 100 ft is marked off on one side. On the other side of the river is a large rock. When sighted from each end of the base line it is found that the lines of sight make angles of 60 degrees and 75

    asked by Casandra
  10. Physical Science

    My homework is to do some exercises on the Foucault Pendulum. I'm stuck on several of the problems. One is to find the approximate angle of rotation of the earth in one day at our latititue, which is 39.9. I found the equation n = 360 sin of latitude, but

    asked by Beth
  11. math

    4th grade math homework. rounding sums and differences. paper say "round each number to its highest place. then estimate the sum or difference." example says 92 +28= then says round to 90 and 30 to make 120. further down numbers get larger 12646 + 9103= do

    asked by tyler
  12. French for Mischa

    PRESENT TENSE OF REGULAR -ER VERBS: NEGATIVE AND NEGATIVE INTERROGATIVE: NEGATIVE: I am not playing, I do not play je ne joue pas nous ne jouons pas tu ne joues pas vous ne jouez pas il ne joue pas ils ne jouent pas elle ne joue pas elles ne jouent pas on

    asked by SraJMcGin
  13. Chemistry 2

    If 2.0 mol of NO and 1.0 mol Cl2 are placed into a 1.0L flask, calculate the equilibrium concentrations of all species

    asked by Hillary
  14. French for Mischa

    PRESENT TENSE OF REGULAR -ER VERBS: INTERROGATIVE: am I playing? do I play? I play? INVERTED FORMS est-ce que FORMS - - - - - - - - est-ce que je joue? joues-tu? est-ce que tu joues? joue-t-il? est-ce qu'il joue? joue-t-elle? est-ce qu'elle joue?

    asked by SraJMcGin
  15. american lit ap

    what is the tone of the scarlet letter and where can i find a quote from the book?

    asked by jamie
  16. PE Modified

    What is energy that is immediately required for short periods of time by using stored glycogen as a source of fuel? I've looked all through the packet [which serves as my book] and still cannot find a single thing about any part of this question...

    asked by anonymous
  17. Trig/Physics

    A car's wheel (with tire) is 26 inches in diameter and its center is 12 inches above the road. If the car is traveling at 60 feet per second, how fast is the highest point of the tire moving relative to the ground?

    asked by Vash
  18. French - Final checking

    Today we made the quiche and we didn't follow the steps exactly because we bought pie crust instead of making it so that omitted a lot of steps. I tried to simplify this as much as possible. I had a difficult time with some of the instructions because the

    asked by Anonymous
  19. Social Studies- (Last minute Help please)

    Hey. I have a social studies project due tomorrow morning, its 840 pm. It's about Prehistory in Pop Culture. Using things from prehistoric time in modern day. I need some ideas to put on the poster. Besides Geico Cavemen ad and Fruity Pebbles.

    asked by Dallas
  20. MEDIA & HISTORY

    Can someone provide me with a good website that contains information for the following: I have to identify the major differences between advertising and public relations and it has to include the strategies developed by Ivy Ledbetter Lee and Edward

    asked by student A
  21. math fifth grade

    this number is a factor of 48. this number is even. this number is a multiple of 6 the sum of the digitsof this number equals 3

    asked by Randall
  22. French for Mischa

    Do you have a French name for class? My favorite would be "Miche" for you! What do you think? Today I'd like to tell you about TPR or Total Physical Response. We did a lot of that in class but you can do some things at home as well. For example, for

    asked by SraJMcGin
  23. French for Mischa

    PRESENT TENSE OF AVOIR AND ETRE: avoir = to have AFFIRMATIVE INTERROGATIVE I have, I do have, have I? do I have? I am having j'ai nous avons ai-je? avons-nous? tu as vous avez as-tu? avez-vous? il a ils ont a-t-il? ont-ils? elle a elles ont a-t-elle?

    asked by SraJMcGin
  24. Math

    One integer is 4 more than a second integer. Three times the first integer when added to two times the second integer is less than 23. Determine the largest possible values of the two integers.

    asked by Jessica
  25. Chemistry

    0.658 g of potassium bromate and 0.562 g of silver nitrate are added to 388 mL water. Solid silver bromate is formed, dried, and weighed. What is the mass, in g, of the precipitated silver bromate? Assume silver bromate is completely insoluble. I've

    asked by Raj
  26. Think A Gram

    Can anyone tell me where this is suppose to lead our thinking?? ... 2:47 pm .... UR Hand .... Hand ... That is all the info ... Any assistance would help de-frazzle this brain!! ... Thank you in advance ..... mom

    asked by Mom
  27. Chemistry

    How do you know when to put roman numerals into formulas of binary compounds?

    asked by TBW
  28. Integrated science

    An insect inside a bus flies from the back toward the front of the bus at 3m/h. The bus is moving in a stright line at 40m/h. What is the speed of the insect? Show you work. I was woundering if someone could help me find the math for this problem? But I

    asked by John
  29. math

    A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter.

    asked by mara
  30. Physics Concept

    2 cars are moving in same direction in parallel lanes along a highway. At some instant velocity of car A exceeds car A exceeds the velocity of car B. Does that mean that the acceleration of A is greater than car B? Explain. ~Well I would say yes but is it

    asked by ~christina~
  31. physics

    A 6 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 1 m/s2, find the force exerted by the rope on the bucket of water.

    asked by hannah
  32. Geography/Sci

    There are many climate zones, but my sci book has the main ones. BUT my homework was to find info on the one I'm researching. Do you know any websites that will tell me about California's climate zone? (Brown zone in Mcgraw Hill Books)

    asked by Sarah H.
  33. chemistry!!!Need helpp!!!

    Acid base Chenistry Homework help!? Histidine was electrophoresed in polyacrylamide at pH 6.0 with alanine (pI=6.0) and arginine (pka's 2.2, 9.0, and 12.5). At the end of the experiment, arginine had migrated toward the cathode 6.0 cm, alanine was still at

    asked by Mae
  34. English(Clauses and Sentences)

    I need help with this... One Sunday, when half of us- including my father - were at work, the rest-including myself - were in the block, taking advantage of the chance to stay in bed late in the morning. These are my guesses... 23. Isolate the dependent

    asked by Sonic
  35. math help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    The smallest abundant number?

    asked by Ben
  36. AP English

    I have to write an essay using the assertion "Man is his own worst enemy" I support this statement but I need examples that are tangible and valid what are examples of this ?

    asked by Sherri
  37. Pre Algebra HELP

    please help don't get it when it sayuse the distributive propetyto rewrite the expressionand then has 10(2+y+z)

    asked by allyson
  38. Micro Economics

    The Production Possiblilties Curve shows that when an eceonomy is acting at its full petential it will be poducing on a point just beyond the Curve. ture or false. Why?

    asked by Justin
  39. Business Math II

    Photography - Two men and a woman are lined up to have their picture taken. If they are arranged at random, what is the probability that (A) the woman will be on the left in the picture? (B) the woman will be in the middle in the picture?

    asked by Dan
  40. Math

    A first time car buyer is looking for a good used car to purchase. In addition to the cost of the car, there is a licensing fee of $140 and sales tax of 10% of the cost of the car. If the buyer only has $6740 to spend, what is the most expensive car that

    asked by Jessica
  41. Math

    Jim can fill a pool carrying bucks of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?

    asked by Jen
  42. math

    show that 3/2 and 1/3 are roots of the quadratic function y=6x2(squared)- 7x -3

    asked by adrian
  43. english

    what issues does the novel strange objects written by gary crew raise?

    asked by daniela
  44. Math

    I'm in gr 11 doing Trigonometry 14.2 = b ---- ---- sin38 sin 67 a = 46 --- ---- sin20 sin130 (10.7)^2 = (9.5)^2 + (12.4)^2 - 2(9.5)(12.4) cos

    asked by Louis
  45. Pre algebra

    f(g+3+h)

    asked by allyson
  46. AP Chemistry

    My objective is to find the molar mass of a gas. Is this the correct balanced equation for magnesium ribbon reacting with hydrochloric acid to form hydrogen gas? 2Mg (s) + 2HCL (l) ----> H2 (g) + 2MgCl (aq) Also, I'm required to find the mass of the

    asked by Jake
  47. science

    I need help finding imformation on what organisms have been affect in china by its co2 output from cars and coal usage...

    asked by Maggie R.
  48. science

    where can i find a wesite with all acid and alkali that you can find round your house?

    asked by emily
  49. spanish

    I would like help to pluralise the following. La casa es alto. El chico es bonita. La bolsa es bonita. Mi libro es interesante. Mi regla es blanca.

    asked by charle
  50. AP USHistory

    In what ways does the movie "National Treasure" relate to the formation of the new American Nation? Thanks for explaining.

    asked by Kiev
  51. human services

    In a essay i did on homeless i stated i feel police should be bring homeless to sfae sheltrers instead of writing them tickets for sleeping in a park. how can this solution be affected by social policies or government regulations? any one have any ideas

    asked by jean
  52. human services

    one more thing...What are some new programs or services we have in helping protect eh homeless from the cold and violence of this world?"

    asked by jean
  53. slope of tangent line

    the sl0pe of the tangent line to the graph of the exponential function y=2^x at the point (0,1) is lim(x->0)(2^x-1)/x. estimate the slope of three decimal places. f'(x)=2^x. what do i do. we have to solve this without using derivative. i keep getting zero.

    asked by Anonymous
  54. AP English

    Man is his own worst enemy. How can prove this is true and what are examples of this? please help

    asked by Sherri
  55. math

    i need to make a clock using the same interger

    asked by sue
  56. Marh

    Simplify and state the restrictions. a)6m^2 - 2m - 4 ------------- 4m^2 - 4 b)2a^2 + 5a - 3 ------------- 2a^2 - 7a + 3 PLEASE SHOW STEP-BY-STEP

    asked by anonymous
  57. Chemistry

    A 35 mL solution of HCl, reacts completely with 20 mL of 0.25 M KBr. What is the molarity of the HCl solution?

    asked by Raj
  58. English

    What kind of literary devices in Kiss and Tell produce a comic effect?

    asked by 565
  59. Physical Science

    In the equation length = t^2 * g/(2PI)^2, what do the symbols ^, *, and / represent?

    asked by Beth
  60. Hon. Lit.

    What are the most significant chapters of Stephen Crane's work "Maggie"? I know that the first two are because the protagonist and antagonist are introduced. Thanks.

    asked by Mjorie
  61. physcis

    a flag pole is 1ooft from an observer who sights the top of the flag pole to be at an angle of 50 degrees from the horizontal. How high is the flagpole

    asked by Casandra
  62. english

    what the heck is a actecedent?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

    asked by katie
  63. Physics

    If a cart and rider are pulled with a constant force of 74.0 N, and the friction force is 29.0 N, how fast will the cart and rider be traveling after 8.70 seconds? Thanks a lot!

    asked by Scott
  64. EASY PHYSICS

    WHAT ARE EQUIPOTENTIAL LINES?

    asked by AL
  65. English

    How would you paraphrase this aphorism? A little neglect may breed mischief,for want of a nail the shoe was lost,for want of a shoe the horse was losted,for want of a horse the rider was lost, for want of the rider the battle was lost.

    asked by jen
  66. Thermodynamics

    I am doing a lab and there is one question I can't get. We have the enthalpy of fusion of crystalline polyeythlene, mass, onset temperature and energy required for a phase change of both low density polyethylene and high density polyethylene. They as to

    asked by Tracy
  67. Science( Physics[ Kinematic eqzns])

    Can the Kinematic equations be used if the acceleration is = to zero? ~I know that they can only be used if the acceleration is constant but would zero constitute a constant? I'm not sure about this...because zero would mean that there is no acceleration

    asked by ~christina~
  68. maths

    How far does a train travel going at 20mph for 45 seconds? And har far will it travel at 13mph for 58 seconds? Thanks

    asked by grant
  69. English

    Could you Please help me punctuate this paragraph. on his way home from school tom found a bag on the ground is this bag yours he asked tara no its not my bag I left mine at school I think it might be emma's bag because hers is blue and green tom laughed

    asked by Robert
  70. math

    determine the quadratic function whose graph contains the points(-2,-1), (-1,0), and (-3,0).

    asked by adrian
  71. Reposted Question /Reading & Writing and exposure

    I have asked this question and was told to use my own judgement because either answer could be correct. I can only select one answer. I am reposting the question in hopes that someone else can give me some input. Hannah's mother said, "Hannah is such a

    asked by Anonymous
  72. science

    i need help with these questions because i need to write a report on it helpp please What are the implications of stem cell reasearch for today and future generations What are stem cells? What are they capable of? How are they used in science/ medicine

    asked by chelsea
  73. math

    The number of feared Pythagoreans

    asked by Ben
  74. science

    What property is changed when in skim milk is made?

    asked by Alex
  75. math

    The number of feared Pythagoreans?

    asked by Jet
  76. help

    The number of days in a lunar?

    asked by Ben
  77. english 11

    I need help finding out if i underlined the correct words that are nouns. If you wouldnt mind helping could you tell me what words are nouns so i know if i did it right? 1)The time was running out on the contest. 2)Even when she took the cold medicince,

    asked by Tara
  78. grammar

    Dangling Modifiers If your baby does not like cold apple juice, it should be heated. Your answer: 1. Dangling Modifiers When they are fresh, eating oranges can often keep away the cold virus. Your answer: 2. Predication Our plans for tomorrow should begin

    asked by Dianna
  79. Grammar

    For an APA paper, the title I have chosen is Art Through the Ages. Should the word "through" be in caps?

    asked by Janna