Gregory
Most popular questions and responses by Gregory
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 1011 for Mg(OH)2 and Ksp = 5.1 1026 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 
World History
Please read Chapter 2 in the textbook The First Complex Societies in the Eastern Mediterranean, ca. 4000550 B.C.E. (pp. 2243) 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 
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 
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 
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 
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 
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 = 2.0 108 for PbSO4 and Ksp = 1.2 105 for Ag2SO4. (a) Which compound precipitates first? (b) What is the concentration of the
asked on March 15, 2013 
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 1011 for Mg(OH)2
asked on March 14, 2013 
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 
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 
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 
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 
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 
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 
science
an areroplane flies to the destination 600km west of its starting point. A wind is blowing from the Northwest 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 
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 
Algebra II
8x^3 1 (2x)^3  1^3 (2x1)(2x^2 + 2x + 1^2) > but this doesnt factor
asked on April 16, 2009 
Algebra
Y= 312.3x+ 18.5 What is the slope?
asked on March 2, 2016 
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 
algebra
square roots 12a^3/25 equal what it radical and rational exponent
asked on May 25, 2010 
business
c. What factors should drive a company to continue in, expand, or exit its chosen market
asked on April 17, 2008 
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 
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 
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 
World History
What caused the destruction of Angkor Wat.
asked on March 8, 2013 
math
square root of x+42square x1=1 could help me please.
asked on May 25, 2010 
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 
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 
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 
Algebra II (Geometric Series)
What is the sum of the following geometric series: 1+1/4+1/16
asked on June 5, 2012 
Math
Need help understanding halflife/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 
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 
algebra
x^2+x/x^26x+8/x^2+3x+2/2x^27x+6 can some help me please...
asked on May 23, 2010 
algebra
x^24/x^2+3x+2 4x^2y^2/y2x I need help with these problem
asked on May 22, 2010 
math
4,000,000[(300,000)+x] = 147,000
asked on March 27, 2010 
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 
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 
Algebra  Functions
Find the domain: a) [sqrt(x+3)]+[5x^2180] b) [sqrt(x+3)]/[5x^2180] c) (8x+9)(9x+8) d) (8x+9)/(9x+8) e) [sqrt(x+2)](5x^2245) f) [sqrt(x+2)]/(5x^2245)
asked on February 28, 2014 
American Govt
Why does the bureaucracy continue to expand?
asked on October 22, 2013 
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 
Algebra II (Exponents)
Simplify: (8x^ y^27)^1/3
asked on June 5, 2012 
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 
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 
Math
Tom Whisky ou l'Illusioniste toqué?
asked on June 4, 2015 
American Govt
How much control does the public, through its elected representatives in Congress, exercise over the bureaucracy?
asked on October 22, 2013 
American Govt
What expectations does the American public have of the federal government?
asked on October 22, 2013 
literature
Jefferson approved of the arrangement of the federal government into
asked on September 5, 2013 
World History
Why did Columbus fail as an administrator on land but excel as a ship captain?
asked on April 27, 2013 
World History
How did the Samurai become such a powerful force in Japan.
asked on April 13, 2013 
World History
Describe the lost libraries of Timbuktu.
asked on April 6, 2013 
World History
Why did Julius Caesar lose power?
asked on March 2, 2013 
World History
What did Julius Caesar do after taking over Rome?
asked on March 2, 2013 
World History
What were Alexander's lasting contributions to society?
asked on February 23, 2013 
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 
college algebra
x/2x/x4=4/x4=4x^2/2 check this please
asked on May 24, 2010 
king
1:7=__:14=__:21=4:__=5:__=:42
asked on October 11, 2015 
World History
How did Julius Caesar gain power.
asked on March 2, 2013 
World History
Why did the Persians who seemed more powerful lose to Alexander?
asked on February 23, 2013 
Tangu
how long does it takes for 1000 pounds to melt in 12 feet of snow at 39 degrees
asked on February 13, 2011 
college algebra
3/t3=5/t+4 3(t+4)(t3)(5) check this problem
asked on May 24, 2010

math
What's the answer for question number 18
posted on May 22, 2018 
Math
No
posted on April 25, 2018 
World History
My teacher will not allow us to use wikipedia,
posted on March 28, 2018 
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 
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 
ELA
ok
posted on January 29, 2018 
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 
ELA
not really and what do you mean i have not indicated what my answer is?
posted on January 29, 2018 
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 
math
no because it only has 9s facts.
posted on November 10, 2016 
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 
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.pig1250 rabbit2.5265
posted on April 6, 2016 
Algebra
Animal  Avg Wt Avg pulse g.pig1250 rabbit2.5265
posted on April 6, 2016 
Algebra
TimeWater level 050 240 430 620 Enter the rate of change of the water level in feet per hour.
posted on April 6, 2016 
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 
Math
Carnations are .60 Tulips are .80
posted on January 10, 2016 
Social Studies
Well they are both wrong that's 4 sure lol
posted on June 4, 2015 
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 
Chemistry
Thank you so much once again Dr. Bob!
posted on March 15, 2013 
Chemistry
At least with part b. I figured out that part a is Pb(NO3)2
posted on March 15, 2013 
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 
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 
Chemistry
Pardon me, I meant 2(1.972) for NaOH and + 2(1.972) for NaCl
posted on March 14, 2013 
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 
Chemistry
Thank you! I got this one right.
posted on March 14, 2013 
Chemistry
I keep getting 1.0e10 for x. I even tried 1.03e10. 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 
Math
Please ignore this question. I was a able to get it. Thanks For Reading!
posted on February 20, 2012 
arithmetic
In a survey of 300 students,96 of them said that math is their favorite subject.
posted on August 23, 2011