Most popular questions and responses by Gregory
  1. math

    For the Rule of 78, for a 12 month period, the last term in the sequence is 12 and the series sums to 78. For an 18 month period, the last term is and the series sum is . For a 24 month period, the last term is and the series sum is . For a 30 month

    asked on January 21, 2016
  2. ELA

    which of the following citations in a works cited page uses proper MLA style? A paul smith the night on the river New york penguin 1987 print. B the night on the river new york penguins 1987 print. C smith paul the night on the river new york penguins 1987

    asked on January 29, 2018
  3. Math

    The rate of bacteria growth in a laboratory experiment was measured at 14% per hour. If this experiment is repeated and begins with 7 grams of bacteria, how much bacteria should be expected after 15 hours? Round to the nearest tenth of a gram.

    asked on October 4, 2018
  4. statistics

    A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability test, the mean for people in general

    asked on June 29, 2009
  5. Chemistry

    What idea can be used with waste products that involves Chemistry? For example, a banana peel can remove bad odor because it contains enzymes.

    asked on June 18, 2019
  6. World History

    Ancient Egypt has long captured the imaginations of ordinary people, not just historians. There seems to be a fascination with Egypt even more than other ancient cultures. Briefly discuss why you think that Egypt has continued to intrigue people.

    asked on January 27, 2013
  7. business Math

    The rate of bacteria growth in a laboratory experiment was measured at 14% per hour. If this experiment is repeated and begins with 7 grams of bacteria, how much bacteria should be expected after 15 hours? Round to the nearest tenth of a gram.

    asked on October 3, 2018
  8. College Bio

    Imagine you are conducting fieldwork and discover two groups of mice living on opposite sides of the river. Assuming that you will not disturb the mice, design a study to determine whether these two groups belong to the same species. If you could capture

    asked on May 3, 2011
  9. calculus

    definite integral of (e^(8x))cosh(8x)dx from 0 to 1/16 -I substitued the definition of cosh in, i.e. (e^(8x) + e^(-8x)/2 but i cant get the "e's" to combine and i know the answer is e/32

    asked on December 6, 2014
  10. chemistry

    According to the equation CH3COOH + NaOH ---> NaCH3COO + H2O is the the ratio in which the acid and the base react 1:1? How can I calculate the molar concentration of the acetic acid from this information?

    asked on April 12, 2008
  11. Algebra

    Kim invested a total of $1500 in two accounts. One account paid 2% annual interest and the other paid 4% annual interest. After one year, Kim earned $44 in interest. How much did she invest in each account?

    asked on March 22, 2016
  12. physics

    The figure below shows a train with 3 compartments only. Each of the compartments has a mass of 30 tons . Two of them are motor cars while the other one is a trailer car. Each of the motor cars provides a driving force F. Suppose the train is accelerating

    asked on September 28, 2014
  13. Chemistry

    A saturated solution of Mg(OH)2 is prepared having a large excess of Mg(OH)2. Sn(NO3)2 is added to the solution. Ksp = 1.8 10-11 for Mg(OH)2 and Ksp = 5.1 10-26 for Sn(OH)2. (a) What [Sn2+] is required to start the precipitation of Sn(OH)2? (b) What [Sn2+]

    asked on March 14, 2013
  14. World History

    Please read Chapter 2 in the textbook The First Complex Societies in the Eastern Mediterranean, ca. 4000-550 B.C.E. (pp. 22-43) and answer the following questions: 1. The Hittites were considered to have military superiority at the time, and they were a

    asked on January 27, 2013
  15. Math

    A farmer raises chickens and goats. She knows she has 22 animals all together. All together her animal has 56 feet. how many of each type of animal does she have?

    asked on September 23, 2014
  16. physics

    A Ferris wheel rotates at an angular velocity of 0.28 rad/s. Starting from rest, it reaches its operating speed with an average angular acceleration of 0.021 rad/s2. How long does it take the wheel to come up to operating speed?

    asked on July 16, 2013
  17. physics

    A pitcher throws a curveball that reaches the catcher in 0.67 s. The ball curves because it is spinning at an average angular velocity of 340 rev/min (assumed constant) on its way to the catcher's mitt. What is the angular displacement of the baseball (in

    asked on July 16, 2013
  18. physics

    A car travelling at 60 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 67 cm (with respect to the road) while being brought to rest by an inflated air bag. What force (assumed constant) acts on the passenger¡¦s upper

    asked on September 27, 2014
  19. Chemistry

    Solid Na2SO4 is added to a solution which is 0.012 M in Pb(NO3)2 and 0.048 M in AgNO3. Assume the volume remains constant. Ksp = 2.0 10-8 for PbSO4 and Ksp = 1.2 10-5 for Ag2SO4. (a) Which compound precipitates first? (b) What is the concentration of the

    asked on March 15, 2013
  20. Chemistry

    If 11.6 mL of 0.17 M MgCl2 are mixed with 24.9 mL of 0.58 M NaOH, what will be the final concentration of Mg2+ in solution when equilibrium is established? Assume the volumes are additive. Ksp = 1.2 10-11 for Mg(OH)2

    asked on March 14, 2013
  21. World History

    What difficulties did early humans face in migrating to Australia and the Americas and what are the theories about how they overcame those difficulties?

    asked on January 19, 2013
  22. statistics

    On a standard measure of hearing ability, the mean is 300 and the standard deviation is 20. Give the Z scores for persons who score (a) 340, (b) 310, and (c) 260. Give the raw scores for persons whose Z scores on this test are (d) 2.4, (e) 1.5, (f) 0, and

    asked on June 29, 2009
  23. business

    What are the benefits to Britain, Sweden, and Denmark of staying out of the euro zone? What are the potential costs? Do you think these countries will eventually join the euro zone? Under what circumstances will they join?

    asked on April 8, 2008
  24. Math

    Josh thinks of an odd number between 268 an 282 the sum of the Hundreds digit and ones digit is equel to the tens digit .what is josh's number

    asked on October 17, 2017
  25. statistics

    A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52,

    asked on June 29, 2009
  26. World History

    How were the Byzantine's Engineering geniuses? Take two or three of their engineering feats and discuss how these marvels led to the empire's overall success.

    asked on April 3, 2013
  27. science

    an areroplane flies to the destination 600km west of its starting point. A wind is blowing from the North-west at 75 m/s. The pilot wants to complete the flight in 55 minutes. Calculate the direction to be taken by the pilot.

    asked on February 4, 2012
  28. Geometery

    I am ask to write a two column proof. Given that AD is the diameter of circle O, and DC is tangent to O at D. Prove that Triangle ABD ~ (congruent) to triangle ADC

    asked on July 26, 2011
  29. Algebra II

    8x^3 -1 (2x)^3 - 1^3 (2x-1)(2x^2 + 2x + 1^2) -> but this doesnt factor

    asked on April 16, 2009
  30. Algebra

    Y= 312.3x+ 18.5 What is the slope?

    asked on March 2, 2016
  31. statistics

    A population of N=8 scores has a mean of M =20. If one score is changed from X=14to X=30 , what would be the value for the new mean.

    asked on June 23, 2010
  32. algebra

    square roots 12a^3/25 equal what it radical and rational exponent

    asked on May 25, 2010
  33. business

    c. What factors should drive a company to continue in, expand, or exit its chosen market

    asked on April 17, 2008
  34. Chemistry

    6. Explain how you would prepare this solution from powdered reagents and whatever glassware you needed: 3.0 L of 1.3 M NaOH

    asked on November 27, 2013
  35. World History

    To say crusade in arabic means something awful compared to saying crusade in English, which means symply "an adventure or mission possibly of a religious manner

    asked on April 3, 2013
  36. World History

    Why did Muhammad find the religion of Islam. How and why was the religion able to spread so rapidly?

    asked on March 22, 2013
  37. World History

    What caused the destruction of Angkor Wat.

    asked on March 8, 2013
  38. math

    square root of x+4-2square x-1=-1 could help me please.

    asked on May 25, 2010
  39. Math

    The requirement for computer server capacity at Acme Industries is expected to increase at a rate of 11% per year for the next 7 years. If the server capacity is expected to be 1,200 gigabytes in 7 years, how many gigabytes of capacity are there today?

    asked on October 3, 2018
  40. Algebra

    Time(hr) Water level (ft) 0 50 2 40 4 30 6 20 Enter the rate of change of the water level in feet per hour.

    asked on April 6, 2016
  41. American Govt

    Is efficiency the best standard for evaluating bureaucratic performance, or are there other important criteria by which to assess what the federal government does?

    asked on October 22, 2013
  42. Algebra II (Geometric Series)

    What is the sum of the following geometric series: 1+1/4+1/16

    asked on June 5, 2012
  43. Math

    Need help understanding half-life/decay problem for upcoming test. A water filter is constructed to form a foam that removes 25% of the particulate impurities for each inch of foam. 1.What percentage of the particulate impurities will be removed by a

    asked on February 19, 2012
  44. Chemistry

    What is the maximum amount of sodium chloride that will dissolve in 250 mL of water at zero degrees celsius?

    asked on January 5, 2011
  45. algebra

    x^2+x/x^2-6x+8/x^2+3x+2/2x^2-7x+6 can some help me please...

    asked on May 23, 2010
  46. algebra

    x^2-4/x^2+3x+2 4x^2-y^2/y-2x I need help with these problem

    asked on May 22, 2010
  47. math

    4,000,000-[(300,000)+x] = 147,000

    asked on March 27, 2010
  48. statistics

    Payne (2001) gave participants a computerized task in which they first see a face and then a picture of either a gun or a tool. The task was to press one button if it was a tool and a different one if it was a gun. Unknown to the participants while they

    asked on June 29, 2009
  49. social studies

    The monarchies of Russia, Austria, and Prussia enacted policies that: A. increased the role of the military B. Sought to separate religion from the control of the state C. excluded nobles from all areas of public life D. worked to create an alliance

    asked on August 10, 2007
  50. Algebra - Functions

    Find the domain: a) [sqrt(x+3)]+[5x^2-180] b) [sqrt(x+3)]/[5x^2-180] c) (8x+9)(9x+8) d) (8x+9)/(9x+8) e) [sqrt(x+2)](5x^2-245) f) [sqrt(x+2)]/(5x^2-245)

    asked on February 28, 2014
  51. American Govt

    Why does the bureaucracy continue to expand?

    asked on October 22, 2013
  52. World History

    Consider the meaning of bloodletting and human sacrifice to the Mesoamericans How do these practices make sense in the context of their belief systems?

    asked on February 23, 2013
  53. Algebra II (Exponents)

    Simplify: (8x^ y^27)^1/3

    asked on June 5, 2012
  54. Finance

    If sales grew 20% from 10,000,000 to 12,000,000 and the discresinary financing needs is 500,000. What percent of sales grown would be needed to equal a DFN of zero.

    asked on March 31, 2010
  55. Math

    Amanda thinks of a Number between 35 an 48 the sun of the digits is seven what is Amanda's number

    asked on October 17, 2017
  56. Math

    Tom Whisky ou l'Illusioniste toqué?

    asked on June 4, 2015
  57. American Govt

    How much control does the public, through its elected representatives in Congress, exercise over the bureaucracy?

    asked on October 22, 2013
  58. American Govt

    What expectations does the American public have of the federal government?

    asked on October 22, 2013
  59. literature

    Jefferson approved of the arrangement of the federal government into

    asked on September 5, 2013
  60. World History

    Why did Columbus fail as an administrator on land but excel as a ship captain?

    asked on April 27, 2013
  61. World History

    How did the Samurai become such a powerful force in Japan.

    asked on April 13, 2013
  62. World History

    Describe the lost libraries of Timbuktu.

    asked on April 6, 2013
  63. World History

    Why did Julius Caesar lose power?

    asked on March 2, 2013
  64. World History

    What did Julius Caesar do after taking over Rome?

    asked on March 2, 2013
  65. World History

    What were Alexander's lasting contributions to society?

    asked on February 23, 2013
  66. Trig/Math

    RST is a triangle with right angle S. If s- 21.3 Angstroms and t=8.71 Angstroms, find the measure of the larger acute angle.

    asked on November 22, 2011
  67. college algebra

    x/2-x/x-4=-4/x-4=-4x^2/2 check this please

    asked on May 24, 2010
  68. king


    asked on October 11, 2015
  69. World History

    How did Julius Caesar gain power.

    asked on March 2, 2013
  70. World History

    Why did the Persians who seemed more powerful lose to Alexander?

    asked on February 23, 2013
  71. Tangu

    how long does it takes for 1000 pounds to melt in 12 feet of snow at 39 degrees

    asked on February 13, 2011
  72. college algebra

    3/t-3=5/t+4 3(t+4)(t-3)(5) check this problem

    asked on May 24, 2010
  1. math

    What's the answer for question number 18

    posted on May 22, 2018
  2. Math


    posted on April 25, 2018
  3. World History

    My teacher will not allow us to use wikipedia,

    posted on March 28, 2018
  4. History

    A is not the correct answer, I just got it wrong, I missed three out of 100 on the test I was taking and the three I missed I listened to this page, my gut told me not to but I did it anyway, lesson learned.

    posted on March 27, 2018
  5. Geometry

    A circle has a diameter of 10 centimeters. What is the best approximation of its area? Use 3.14 to approximate for π . 15.7 cm² 31.4 cm² 78.5 cm² 314 cm²

    posted on February 6, 2018
  6. ELA


    posted on January 29, 2018
  7. ELA

    if you were reading the NOTE: section of my question you would have saw where i have giving you my answer's for both questions

    posted on January 29, 2018
  8. ELA

    not really and what do you mean i have not indicated what my answer is?

    posted on January 29, 2018
  9. college

    .) Construct a frequency distribution table for the following set of scores. Include columns for proportion and percentage in your table. Scores: 5, 7, 8, 4, 7, 9, 6, 6, 5, 3 9, 6, 4, 7, 7, 8, 6, 7, 8, 5

    posted on January 21, 2017
  10. math

    no because it only has 9s facts.

    posted on November 10, 2016
  11. Algebra

    HOURS STUDYING----- AVG GRADE 0-------------------- 62 1-------------------- 78 2-------------------- 85 5-------------------- 74 WHICH TYPE OF FUNCTION IS MOST LIKELY TO MODEL THESE DATA? A. LINEAR FUNCTION W/POSITIVE SLOPE B. LINEAR FUNCTION W/NEGATIVE

    posted on April 6, 2016
  12. Algebra

    If the study had included these data, would this change the model relating avg body weight and avg pulse rate? Explain. Animal ----- Avg Wt------ Avg pulse g.pig-----------1------------250 rabbit---------2.5-----------265

    posted on April 6, 2016
  13. Algebra

    Animal ----- Avg Wt------ Avg pulse g.pig-----------1------------250 rabbit---------2.5-----------265

    posted on April 6, 2016
  14. Algebra

    Time--------Water level 0---------------50 2---------------40 4---------------30 6---------------20 Enter the rate of change of the water level in feet per hour.

    posted on April 6, 2016
  15. math, unit price

    4 boxs of chicken nuggets for $25.44.a competing restaurant has 6 box of chicken fingers for $39.00.which food has a higher unit price?

    posted on February 23, 2016
  16. Math

    Carnations are .60 Tulips are .80

    posted on January 10, 2016
  17. Social Studies

    Well they are both wrong that's 4 sure lol

    posted on June 4, 2015
  18. physics

    sorry that the graph I tried to make totally sucks. I meant the cars in the middle and right are motor cars and the train is accelerating to the right hand side.

    posted on September 28, 2014
  19. Chemistry

    Thank you so much once again Dr. Bob!

    posted on March 15, 2013
  20. Chemistry

    At least with part b. I figured out that part a is Pb(NO3)2

    posted on March 15, 2013
  21. Chemistry

    Well, what a coincidence. Hello Stephon! My uncle's name is Stephon, but he lives across the country from me. Anyways, can someone please help me with this problem?

    posted on March 15, 2013
  22. Chemistry

    This revision was correct. Thank you so much for helping, I actually understand how to solve the problem now.

    posted on March 14, 2013
  23. Chemistry

    Pardon me, I meant -2(1.972) for NaOH and + 2(1.972) for NaCl

    posted on March 14, 2013
  24. Chemistry

    I think I see the problem. For the first ICE box, shouldn't C for NaOH and NaCl be + 2*(1.972)?

    posted on March 14, 2013
  25. Chemistry

    Thank you! I got this one right.

    posted on March 14, 2013
  26. Chemistry

    I keep getting 1.0e-10 for x. I even tried 1.03e-10. The answer is incorrect. I checked your work, and everything was calculated correctly, I'm not sure what went wrong.

    posted on March 14, 2013
  27. Math

    Please ignore this question. I was a able to get it. Thanks For Reading!

    posted on February 20, 2012
  28. arithmetic

    In a survey of 300 students,96 of them said that math is their favorite subject.

    posted on August 23, 2011