Questions Asked on
August 20, 2011

  1. Chem

    Consider the balanced chemical equation: 3Sr(OH)2(aq) + 2H3PO4(aq) → Sr3(PO4)2(s) + 6H2O(l). How many moles of Sr(OH)2 remain if 0.10 mol of H3PO4 react with 0.40 mol of Sr(OH)2?

    asked by Mike
  2. bio

    If the frequency of one allele in a population is 0.7, what is the frequency of the alternate allele? A) 0.30 B) 0.21 C) 0.42 D) 0.09 E) 0.49

    asked by Anonymous
  3. gp school

    calculate the molarity of a solution when 5g of urea is dissolved in 600ml of water

    asked by shiksha
  4. statitics

    Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). a. If you have a body temperature of 99.00 °F, what is your

    asked by ann
  5. geometry

    The line QS bisects

    asked by britany
  6. HCA/210

    i need help with a 200-300 word on the rising health care costs

    asked by lisa
  7. trig

    A ferris wheel with a diameter of 100 feet rotates at a constant rate of 4 revolutions per minute. Let the center of the ferris wheel be at the origin. 1. Each of the ferris wheel's cars travels around a cirlce. a) Write an equation of the circle where x

    asked by Chris
  8. math

    three boxes are in a room. You know that one contains apples, one centains oranges, and one contains a mixture of apples and oranges, but you don't know the contents of the specific boxes. The boxes are labeled "apples","oranges", and "apples and oranges",

    asked by Audrey
  9. human service

    Can you tell me if I am correct or not. Arbitration is used to help resolve a issue between two parties. The parties can submit their dispute to an third party and the arbitrator will consider all the facts and render a judgement? If I am correct, can you

    asked by patiance
  10. computers

    can we create two variables of same name and of different datatype?

    asked by prasanna
  11. physics

    a ball is dropped from the height. if it takes 0.2 sec. to cross the last 6 m before hitting the ground find the ht. from which it was dropped

    asked by Anonymous
  12. chemistry

    why we just see a light spot of benzaldehyde after tlc in iodine chamber which soon vanishes and does not appear again?

    asked by manoj
  13. COM/156

    I have a rough draft of an essay that I need revised and checked for comma usage. Would someone be able to look my essay over? To be honest I do not have another person to read over my work.

    asked by blake
  14. Math

    If the bisector of the vertical angle of the triangle bisects the base prove that the triangle is isosceles?

    asked by Syed
  15. bio

    the biome with the fewest seasonal changes is the

    asked by toba
  16. Maths

    What is the ratio of boys to girlr if there are 6 boys and 12 girls in a class

    asked by Anonymous
  17. Statistics

    The notion of statistical significance is frequently used in business to distinguish between true and spurious between-group differences (such as a difference between the response rates to two different promotions). Hence, when the difference between the

    asked by George
  18. Math

    Simifly the ezpression 8d^2 + 3d + 7d^2 - 6d

    asked by Sarah
  19. Statistics

    Construct the probability distribution for the value of a 2-card hand dealt from a standard deck of 52 cards (all face cards have a value of 10 and an ace has a value of 11). a) What is the probability of being dealt a hand that adds up to 21? b) What is

    asked by Carlos
  20. science

    I HAVE WRITTEN A MITIGATION PLAN AND WANTED TO KNOW IF SOMEONE WOULD READ IT A GIVE ME FEED BACK AS TO WHAT I CAN CHANGE Energy Conservation Mitigation Plan Humans are not making energy conservation a priority. Spending a day without energy will be a hard

    asked by girl
  21. Math

    Prove the identity: cosx/1-tanx +sinx/1-cotx

    asked by Aliya
  22. math

    What happens to the mean, median and mode for the data shown if the outlier is eliminated? 8 3 5 3 23 4 7

    asked by drea
  23. business

    Chapter 14 Case – “Hewitt-Packard Company” Need ideas for case study paper, any ideas?

    asked by WS
  24. statistics

    1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. (True/False) b. The graph of a normal distribution is bell-shaped. (True/False) c. If a population has a normal distribution, the mean and

    asked by ann
  25. statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. Percentage of scores less than 100 b.

    asked by ann
  26. statistics

    A normal distribution is any distribution that is not unusual. (True/False)

    asked by ann
  27. Biology

    Hypothesis on finding if the dissappearance of a particular fish species from a lake in the northwestern united states is due to acid rain resulting from industrial air pollution

    asked by Betty
  28. statsitsc

    b. The graph of a normal distribution is bell-shaped. (True/False)

    asked by ann
  29. business and administrative communication

    which audience has political,social or economic power,pays close attention to the transaction between you and the primary sudience and my base future actions on its evaluation of your message

    asked by leticiea
  30. english

    how can i make this sentece better If so the boat figuratively seems to be the transportation to heaven. Given that death is experienced alone the next line, “one clear call for me”, endorses that the poet was depicting the scene of passing away and

    asked by sam
  31. math

    is 49 a perfect square? can you please explain.

    asked by drea
  32. math

    Explain how you could use the Pythagorean Theorem to find the distance between the points the coordinate pair negative four comma negative three and the coordinate pair one comma one. Find the distance. You can type carat two to indicate "squared" and

    asked by drea
  33. Statistic

    Indicate whether the given statement could apply to the data set consisting of 1000 values that are all different. 1. The 29% is greater then the 30 th percentile. 2. The median is greater then the first quartile. 3. The third quartile is greater then the

    asked by Sonia
  34. math

    divide 44/16.5

    asked by kathy
  35. math

    divide 44/16.5

    asked by kathy
  36. algebra

    x = 3 a solution for 3x – 1 = 6? Write yes or no.

    asked by chuck
  37. alebra

    Solve using the addition principle. x + 1 = 7

    asked by chuck
  38. social psychology

    Does a person's self-efficacy changes as their personalities develop and they learn new information. Does failure necessarily reflect on the people we are. Does being motivated to learn new things and do better in all aspects of our lives helps our

    asked by Sharon
  39. algebra

    How to put this math problem in power point presentation. Evaluate both expressions by using R= 120 and s = 200 : Find the LCD of the terms in the equation.

    asked by faith
  40. Math

    A ramp 10 feet in length rises to a loading Platform that is 4 feet off the ground. What is the angle of elevation of the ramp in degrees? Do I use the law of cosines? When I do though I'm getting a little confused what to do.

    asked by Jason
  41. geometry

    simplify completely -2 (2x + y) -7x + 2y?

    asked by guadalupe
  42. geography

    explain indias drianage system

    asked by shravani
  43. science

    chemical formula

    asked by apoorva
  44. math

    2. Maryam pays $3000 on the 30th day of a $7,000, 120-day, and 8% loan. a. What is the adjusted principal after the partial payment is made if ordinary interest is applied? (5 points) Answer: b. What is the adjusted balance due at maturity? (5 points)

    asked by Anonymous
  45. english

    I have a feeling that my sentences are very bad. can you please correct them. the three senetnces are based on the poem "crossing thebar" by alfred tennyson. 1) The reason why the ship comes out from the boundless deep is because the ship symbolically

    asked by pria
  46. Maths

    There are 2 packets of flour, Y & Z.The ratio of the mass of Y to Z is 4:1. If 26g is added to Z,the ratio of the mass of Y to Z is 7:5. Find the mass of the 2 packets at first.

    asked by aggie
  47. Maths

    There are 2 packets of flour, Y & Z.The ratio of the mass of Y to Z is 4:1. If 26g is added to Z,the ratio of the mass of Y to Z is 7:5. Find the mass of the 2 packets at first.

    asked by aggie
  48. Finance

    Benson Incorporated has bonds with the following features: Par value of 1,000, maturity of 12 years, and a coupon rate of 8%.The yield to maturity is 10%. Pleases determine if the bond sells for for a premium, par, or discount and explain your answer.

    asked by Mybenz
  49. kkkkk

    Find the amount of compound interest earned in an account that opens with $27,000, earns 4.6% interest compounded daily, and is held for 15 years. Assume 360 days in a year. (Round your answer to the nearest cent.

    asked by kamilya
  50. Math

    Write the following without negative exponents: (a^-1 + b^-1)^-1

    asked by Jenna
  51. math

    in the triangle ABC,AB=3 BC =4 CA=2.D is the point on CA such that AD bisects angle A.M is the mid point of CA.F is a point on AB such that angle AFD=90. DF and am meet at the point E.Then AF:FB=?,DE:EF=?

    asked by montu yadav
  52. social psychology

    Explain how a college education will change or modify your self-schema.

    asked by Sharon
  53. physics

    A 88-kg astronaut and a 1200-kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.25m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with

    asked by ash
  54. mathsP5

    There are 2 packets of flour, Y & Z.The ratio of the mass of Y to Z is 4:1. If 26g is added to Z,the ratio of the mass of Y to Z is 7:5. Find the mass of the 2 packets at first. Pls show how to solve by model method as i have not learnt algebra. tks

    asked by joel
  55. chemistry

    1.what is the volume of NaCl in cubic cm and cubic nm if the Length is 0.563 nm? 2. the density of NaCl is 2.17 g/cm. What is the Mass? 3. Each repeating unit is composed of 4 NaCl molecules. What is the Mass of 1 NaCl molecule?

    asked by andi
  56. math

    Prove that (secx+tanx)^2=1+sinx/1-sinx Thanks in advance.

    asked by Aliya
  57. trig

    (sec theta + cosec theta) (sin theta +cos theta) = 2 + sec theta cosec theta

    asked by Jancy
  58. math modeling

    Person A opens an IRA at age 25, contributes $2000 per year for 10 years, but makes no additional contributions thereafter. Person B waits until age 35 to open an IRA and contributes $2000 per years for 30 years. There is no initial investment in either

    asked by fazilah edwin
  59. math

    1. Prove the identity:cosx/1-tanx+sinx/1-cotx=sinx+cosx 2.Prove the identity: cosx/1+sinx+1+sinx/cosx=2secx

    asked by Aliya
  60. Maths

    60% of the people on a bus are male. After 1/3 of the males alighted from the bus, what percentage of the people left on the bus are females?

    asked by jo
  61. maths

    there are 15 guppies, 14 angelfish and 5 goldfish in a tank. how many guppies and goldfish must be added so that the ratio of guppies to angelfish to goldfish is 9:7:5

    asked by jo
  62. Algebra

    Help! sin B = ( 5 square root 2)/ (5 square root 3), find the value of csc B

    asked by lizzie
  63. trigonometry

    sin2 =2tan cos

    asked by soge
  64. trigonometry

    sin2 =2tan cos

    asked by soge
  65. trigonometry

    sin2 =2tan cos

    asked by soge
  66. Am. History

    Immigration was a hot topic during this time period (1820-1850), and it remains a hot topic today. In what ways does immigration continue to shape our nation? can anyone "get the ball rolling" for me. not looking for an answer, just a starting point. maybe

    asked by Stacy
  67. chemistry

    what weight of sodium hydroxide(NaOH) is required to make 20ml of 5% (w/v) sodium hydroxide?

    asked by 97896
  68. algebra

    simplify the expression (x+3y-5z)-(x-2y+3z)

    asked by Kenny
  69. Statistics

    A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% (240) and 70%, (280) respectively. Four hundred (400) people are screened at a clinic during the first year the new

    asked by Genevieve
  70. math

    The domain of g(f(x)) where f(x)=x+4 and g(x)=sqrt(x) is?

    asked by Kathy
  71. stat

    A company’s CEO wanted to estimate the percentage of defective product per shipment. In a sample containing 500 products, he found 30 defective products. (a) Find a 98% confidence interval for the true proportion of defective product. Show your

    asked by me,me
  72. math

    a single card is drawn from a deck. find the probability of selecting a 10 or a diamond.

    asked by harry
  73. math

    The number of real solutions to the system of equations y=2sin(x^2) and y=x^3-x is a. 0 b. 1 c. 2 d. 3 Please show your work! Thank you!

    asked by Kathy

    At 285mmHg +25 degrees celsius,a gas sample has a volume of 2270ml. what is the final pressure in mmHg at a volume of 1250ml and a temperature od 175 degrees celsius?

    asked by TERI
  75. science

    Author Donald Kennedy thinks it is possible to find environmental solutions that are risk-free.

    asked by tory
  76. english

    1) i don't if these entences are good. The poet tells his audience to not mourn after his death, because he is going to his permanent home, heaven. 2) Thus, the poet is conceptualizing that even if you die you would always meet your family and friends in

    asked by pria
  77. Physics

    a 35 g ice cube at 0.0 C is added to 110 g of water in a 62 g aluminium cup. The cup and the water have an initial temperature of 23 C . Find the equilibrium temperature of this system? in Celsius ,, I've been trying to solve this for 2 hours now , and I

    asked by AfterLife
  78. German

    In any subordinate clause does the word always have to be in the end?

    asked by Sia
  79. statistics

    Catriona buys a car costing £3500. There is a reduction of one-fifth of the price. She pays three-eights of the reduced price as deposit. How much is the deposit?

    asked by drakeagle