Popular questions and responses by Rhea
  1. geometry

    An architect plans to make a drawing of the room of a house. The segment LM represents the floor of the room. He wants to construct a line passing through Q and perpendicular to side LM to represent a wall of the room. He uses a straightedge and compass to

    asked on February 10, 2014
  2. physics

    a projectile shot at an angle of 60 degrees above the horizontal strikes a building 80 ft away at a point 48 ft above the point of projection (a) find the velocity of projection. (b) find the magnitude and direction of the velocity of the projectile when

    asked on November 24, 2012
  3. Statistics - M/C

    14. The marks on a statistics test are normally distributed with a mean of 62 and a variance of 225. If the instructor wishes to assign B’s or higher to the top 30% of the students in the class, what mark is required to get a B or higher? a. 68.7 b. 71.5

    asked on October 23, 2010
  4. Accounting

    How does an inventory write-off effect the cash flow statement?

    asked on April 18, 2011
  5. math

    sheila spent one-sixth of her money in one store. in the next store, she spent three times as she spent in first store, and had 80.00 left. how much money did she have at the start?

    asked on March 9, 2012
  6. Organic Chemistry

    Rank the following compounds in order of increasing acidity. a. H2O, H3O-, Ho- == HO-, H2O, H3O- b. NH3

    asked on August 4, 2014
  7. Statistics

    The weather forecaster reports that the probability of rain tomorrow is 10%. a. Which approach was used to arrive at this number? Was it the analytical (classical) approach, relative frequency approach or subjective approach?

    asked on October 5, 2010
  8. Statistics

    Determine whether each of the following is a valid probability distribution. a) X: 0, 2, 2, 3 P(x): .1, .3, .4, .1 b) X: 5, -6, 10, 0 P(x): .01, .01, .01, .97 c) X: 14, 12, -7, 13 P(x): .25, .46, .04, .2

    asked on October 2, 2010
  9. Statistics

    You are shown a coin that its owner says is fair in the sense that it will produce the same number of heads and tails when flipped a very large number of times. Suppose you decide to flip a coin 100 times. a. What conclusion would you be likely to draw if

    asked on September 19, 2010
  10. math

    What is the standard form of 4x²+4y²-20x+12y-2=0

    asked on November 13, 2018
  11. physics

    A 5.25-kg ball, moving to the right at a velocity of +2.10 m/s on a frictionless table, collides head-on with a stationary 7.60-kg ball. Find the final velocities of the balls if the collision meet the following conditions. (a) elastic 5.25-kg ball =

    asked on March 1, 2016
  12. Statistics

    Suppose you believe that, in general,graduates who have majored in your subject are offered higher salaries upon graduating than are graduates of other programs. Describe a statistical experiment that could help test your belief.

    asked on September 19, 2010
  13. physics

    show that none of the principal moments of inertia can exceed the sum of the other two Please help me thank you

    asked on December 4, 2012
  14. math

    farmer montague raises chicken and goats. she is not sure how many she of each animal. but she does know she has 22 animals all together. She also know that all together,her animals have 56feet. How many of each type animall does farmer montague have?

    asked on October 26, 2011
  15. Accounting

    How is a contract penalty recorded for the company that hires a contractor?

    asked on April 18, 2011
  16. URGENT Statistics

    In performing two-tailed hypothesis test with v=20, you obtain a t-statistic of 2.41. The p-value is: Between 2% and 5%. I need help understanding how this range was gotten. I know that the t-statistic is between t.025 and t.01 and since this is a 2-tailed

    asked on December 10, 2010
  17. Statistics - M/C

    In a version of the game of roulette, a steel ball is rolled onto a wheel that contains 19 red, 19 black and 2 green slots. If the ball is rolled 25 times, the probability that it falls into the green slots two or more times: a) is 5%. b) is 35.8%. c) is

    asked on October 23, 2010
  18. Statistics - M/C

    The weather forecaster reports that the probability of rain tomorrow is 10%. a. Which approach was used to arrive at this number? 1) Analytical (Classical) 2) Relative Frequency 3) Subjective

    asked on September 30, 2010
  19. Statistics

    A friend calculates a variance and reports that it is -25.0. How do you know that he has made a serious calculation error?

    asked on September 26, 2010
  20. Statisitcs

    The operations manager of a large plant with four departments wants to estimate the person-hours lost per month due to accidents. describe a sampling plan that would be suitable for estimating the plantwide loss and for comparing departments.

    asked on September 19, 2010
  21. Math

    I have a 92 average right now. I got a 93 on a major grade test, but my teacher has not posted the grade in Skyward yet. Will my average get lower or higher?

    asked on April 23, 2016
  22. Statistic in Social Science

    The verbal part of the Graduate Record Exam (GRE) has a mean of 500 and a standard deviation of 100. Use the normal distribution to answer the following questions: a. If you wanted to select only student at or above the 90th percentile, what verbal GRE

    asked on April 29, 2014
  23. maths

    what are the binary representtations of the following decimal numbers? 17,29,38

    asked on March 19, 2013
  24. maths

    what are the binary representtations of the following decimal numbers? 17,29,38

    asked on March 19, 2013
  25. Sampling Distribution

    Sampling Distribution Complete solutions and illustrations are required. 2.In a study of life expectancy, it was found that the mean age at death in the Philippines was 72 with a standard deviation of 5.8 years. If a sample of 50 Filipino people is

    asked on February 27, 2013
  26. Sampling Distribution Complete solutions and illus

    Sampling Distribution Complete solutions and illustrations are required. 1.The average annual salary for all U.S. teachers is $29,863. Assume that the distribution is normal and the standard deviation is $5,200. a.Find the probability that a randomly

    asked on February 27, 2013
  27. Integrated Marketing Communications

    develop an IMC plan for a business.

    asked on September 14, 2012

    a board is 15 5/8 in. long . If it must be divided into three pieces of equal length , how long must each piece be ?

    asked on June 14, 2012
  29. chemistry

    Calculate the value of ΔHo for the reaction 2 CH4 (g) -> C2H6 (g) + H2 (g) given the following thermochemical equations: C2H2 (g) + H2 (g) -> C2H4 (g) ΔHo = – 175.1 kJ C2H6 (g) -> C2H4 (g) + H2 (g) ΔHo = + 136.4 kJ C2H2 (g) + 3 H2 (g) -> 2 CH4 (g)

    asked on January 25, 2012
  30. alegebra 2

    what is y=16x to the 2nd power-2x-5

    asked on October 27, 2011
  31. science

    calculate the density of a liquid if 150g of a substance with 188mL volume

    asked on August 11, 2011
  32. Accounting

    a. IPC purchases real estate in prime locations where an existing theatre chain does not adequately serve the market. After purchasing the real estate, IPC engages a contractor to build a theatre complex. During fiscal 2009, IPC received a $2,000,000

    asked on April 18, 2011
  33. Accounting

    In 2014 ABC Company reported net income of $100,000. What would be the effect on retained earnings on ABC Company's balance sheet and on its 2015 income statement if it didn't record a closing entry?

    asked on March 2, 2011
  34. Accounting

    What is the journal entry for the following? Stan opened a bank account in the name of SSRC and deposited $10,000 of his savings into the account.

    asked on March 2, 2011
  35. Accounting

    Cadzow Inc purchases all of its inventory on credit. On January 1, 2008 Cadzow had $1,750,000 of Inventory. Cost of goods Sold during 2008 was $5,650,000. The beginning and ending balances in Cadzow’s Accounts Payable account on January 1, 2008 and

    asked on March 2, 2011
  36. Accounting

    How do you calculate the 'Capital stock at the end of the year' with the following information? Revenues: $375,000 Expenses: $297,000 Net Income: $78,000 Retained earnings at the beginning of the year: 0 Retained earnings at the end of the year: $68,000

    asked on January 7, 2011
  37. Statistics

    How do you differentiate between equal and unequal variances when conducting a t-test for comparing two populations?

    asked on December 10, 2010
  38. Physics

    A 63 canoeist stands in the middle of her canoe. The canoe is 3.0 long, and the end that is closest to land is 2.6 from the shore. The canoeist now walks toward the shore until she comes to the end of the canoe. Suppose the canoeist is 3.3 from shore when

    asked on November 17, 2010
  39. Stats

    Twenty-three students wrote a statistics examination having a maximum of 50 marks. The mark distribution is given in the following stem-and-leaf diagram: 0 9 1 25 2 01335889 3 001369 4 02248 5 0 Q1 is equal to: a) 15 b) 21 c) 23 d) None of the above THE

    asked on October 23, 2010
  40. Stats

    A test has 15 true or false questions and 10 multiple choice questions (each with 4 choices). All questions are weighted equally. Jack has not studied at all for the test and randomly guesses. 1. What is the probability that Jack gets 96% on the test? a.

    asked on October 23, 2010
  41. Statistics

    19. George got 70% on an economics exam where the mean was 55% and the variance was 9. If a professor wishes to change the distribution of marks so that they have a mean of 70% and a standard deviation of 5, what will George’s new mark be? a) 95% b) 85%

    asked on October 23, 2010
  42. Statistics

    Is the following classified as interval, ordinal or nominal data? The marks achieved by the students in a statistics course out of 100.

    asked on September 29, 2010
  43. Statistics

    n=1000, bell-shaped Mean - 5,000 ~950 lie +/-100 of 5000 -4900 to 5100 Required 1) Standard Deviation 2) 97.5th percentile value 3) Z-score for 16th percentile

    asked on September 26, 2010
  44. Check Statistics

    Calculate the first, second, and third quartiles of the following sample. 2 2 3 3 4 4 4 5 5 5 7 7 8 9 10 Are my answers correct: 25th percentile = 3 50th percentile - 5 75th percentile = 7

    asked on September 26, 2010
  45. Statistics

    A statistics practitioner determined that the mean and standard deviation of a data set were 120and 30, respectively. What can you say about the proportions of observations that lie between each of the following intervals? a. 90 and 150 b. 60 and 180 c. 30

    asked on September 26, 2010
  46. Statistics

    Examine the three samples listed here. Without performing any calculations, indicate which sample has the largest amount of variation and which sample has the smallest amount of variation. Explain how you produced your answer. a. 17 29 12 16 11 b. 22 18 23

    asked on September 26, 2010
  47. Statisitcs

    A large university campus has 60,000 students. The president of the students' association wants to conduct a survey of the students to determine their views on an increase in the student activity fee. She would like to acquire information about all the

    asked on September 19, 2010
  48. Sta

    A regular feature in a newspaper asks readers to respond via e-mail to a survey that requires a yes or no response. In the following day's newspaper, the percentage of yes and no responses are reported. discuss why we should ignore these statistics.

    asked on September 19, 2010
  49. Management

    What major challenges do you think are facing contemporary enterprise?

    asked on September 17, 2010
  50. social studies

    i need to know hre diffrent trading goodes for each province in canada

    asked on March 23, 2009
  51. soial studies

    what are some stories /myths about rhea

    asked on April 26, 2008
  52. trig

    I am having trouble figuring these two out The directions say find all solutions to the triangles described below. Round each angle to the nearest degree and the length of the missing side to the nearest tenth at the end of the computations C= 27 degrees

    asked on March 19, 2008
  53. statistics

    what are the variables of statistics according to functional relatipnships?

    asked on June 25, 2008
  1. university-health economics

    Critically discussion the statement, “Medial care is so special that normal economic forces do not apply.”

    posted on February 1, 2018
  2. reading

    But what about 'Dainty'?

    posted on October 4, 2016
  3. math

    Least-ones. greatest-thousands

    posted on July 22, 2016
  4. 7th grade Science

    1-10 complete the (%m/m) of 54.00g of AgNo3 is dissolved in 128.00g of water

    posted on July 15, 2013
  5. Science

    1-10 complete the (%m)of 54.00g of AgNo3 is dissolved in 128.00g of weter

    posted on July 15, 2013
  6. Strategic Management

    If you are considering opening a new pizza restaurant in your community, what would be the threat of new entrants? How would you evaluate Porter’s other forces for this industry?Explain.

    posted on July 10, 2013
  7. physics

    thank you so much ^^

    posted on November 25, 2012
  8. 3rd grade math


    posted on November 3, 2011
  9. Statistics

    Thanks for the response

    posted on September 19, 2010
  10. Statistics

    Thanks so much for the reply!

    posted on September 19, 2010
  11. Management

    Basically meaning modern organizations.

    posted on September 17, 2010