Maryanne
Popular questions and responses by Maryanne
History
Do you agree with Darwin's idea of natural selection. Why or why not. Give minimum of 3 examples. thanx
asked on October 25, 2008 
Trigonometry
If sin A = 3/5 and cos B = 24/25 and
asked on March 23, 2013 
English
Is this correct : I have never watched a most frightening film in all my life
asked on May 12, 2020 
CHEMISTRY
Suppose you had a detection device that could count every decay event from a radioactive sample of plutonium239.052156 (t1/2 is 24,000 yr). How many counts per second would you obtain from a sample containing 0.126 g of plutonium239? (The mass of Pu239
asked on September 5, 2012 
physics
What is the total resistance in a parallel circuit with a 10 ohm lamp and a 15 ohm lamp?
asked on May 24, 2010 
Math
Let f(x) = x+2/x1. Find a function g(x) so that f(g(x)) = x. How do I solve this? I’m stuck on what to do. Thank you!
asked on October 10, 2019 
Math
23. Lois built a rectangular flower bed. She used four boards for the border of the flower bed. Two of the boards were 4 feet long. The other boards were 8 feet long. a. What was the area of the flower bed using these boards? b. She decided to cut each
asked on November 6, 2016 
Derivatives
with respect to x f(cos x) if f'(x)= 1/x find (f(cos x))' i got tan x sec x this is wrong. can you explain thank you
asked on March 20, 2013 
Derivative
Find dy/dx for the following: 1) x^3 + 3x^2*y + y^3 = 4 I get 3(x+2y)/x^2 + y^2 it's wrong though. 2) x + y^2= xy^2 I get y^2 + 1/ 2y 2xy this is also wrong. can you explain thanks
asked on March 20, 2013 
Soial Work
Discuss a case fro the NM court which has used a ruling involving the Tarasoff case
asked on June 6, 2012 
HIS 103
why didn't Byzantium have much more cultural influence farther west, rather than in eastern and southeastern Europe?
asked on June 2, 2012 
HIS 103
What made Byzantium "Roman" other than its formerly being part of the Roman Empire? How Roman was it when it spoke Greek and, after the 11th century, was no longer Catholic?
asked on June 2, 2012 
HIS 103
Good overview; how did Eastern Orthodox Christianity (which split from the Catholic Church in the mid11th century) differ from Rome in its basic concepts and worship style?
asked on June 2, 2012 
HIS 103
Was a more fluid social structure, with more change and mobility somehow not diserable in the caste system
asked on May 26, 2012 
Math and Society
Which solid has the greatest volume? a)A right cylindrical cylinder with a radius of 4 inches; b)A cube with a side of length of 4 inches; or c) a sphere with a radius of 4 inches?
asked on May 5, 2012 
microbiology
Lactobacillus species ferment glucose, as demonstrated by the snyder test. What other metabolic functions might they perform judging by the list of ingredients: Yeast extract, agar, sodium chloride, pancreatic digestive casein. Thank you
asked on March 23, 2011 
Chemistry
If a 6.00M solution of sodium hydroxide occupies 520 mL of space how many grams of NaOH is dissolved in the solution? (Remember M = moles/L). And the work.
asked on September 30, 2010 
Chemistry
The density of oak lumber is approximately 800km/m^3. What is the mass in grams of 4 cubic meters of oak? And the work.
asked on September 30, 2010 
Chemistry
What is the mass in grams of 4.556 x 10^30 lead atoms? Also the work.
asked on September 30, 2010 
health fraud hair products
ok so i have to pick a product basically that is like a fraud and it has to be a hair product. then i have to write a summary about it. so i was thinking a product that claims it can grow hair and stop hair lose. Does anyone know of any products like that,
asked on September 4, 2010 
math
provide a counterexample to show that each statement is false. a) if a four sided figure has four congruent sides, then it has for right angles. at first i thought of a trapezoid proves that wrong but then i remembered only 2 sides have to be congruent for
asked on September 1, 2010 
conformity paper
Just to say first im not wanting anyone to write my paper for me. I have to write an english paper about non conformity and conformity. I already have a load of information but Im looking for a little more. directions:observe conformity as it exists in
asked on August 28, 2010 
chemistry
28.06 mL to grams
asked on August 26, 2010 
chemistry
to DrBob222 wouldn't it be like this then 4.86L/12.75kg*1000cm^3/1L*(1kg/1000g)^3
asked on August 26, 2010 
chemistry
An aluminum engine block has a volume of 4.86 L and a mass of 12.75 kg. What is the density of the aluminum in grams per cubic centimeter?
asked on August 26, 2010 
Social Studies.\ASAP PLEASE
What factors shaped the move from colonial, country life to modern, urban life? What was urban city life like during the rise of urbanization? How was it different or similar to modern urban life? Can you help me? I have not heard from my teacher about
asked on April 7, 2010 
Chemistry
Can someone please check this for me? C4H8+5O2>3CO2+4H2O+C Butane is a gas and .01 g of it is burned. Is .00218 g of carbon the result? Thanks
asked on November 1, 2009 
college chemistrythermochemistry
i have one more question: I know this one has to do with hess's law but i'm not sure of how to get the enthalpy of vaporization from this? Clculate the enthalpy of vaporization of solid potassium bromide to a gas of ions, the process
asked on November 8, 2008 
college chemistrythermochemistry
A 1.50g sample of NH4NO3(s) is added to 35.0g of water in a foam cup and stirred intil it dissolves. The temperature of the solution drops from 22.7 to 19.4 degrees celcius. What is the heat of dissolution of NH4NO3, expressed in kJ/mol NH4NO3?
asked on November 8, 2008

LIFE SCIENCES
The fossils are preserved with chemical in order to assist scientist with educational research or future DNA testing
posted on June 28, 2017 
Math
I am unable to make the figure (with both boards) to begin with...
posted on November 6, 2016 
math
oh its a rhombus! Thank you!
posted on September 1, 2010 
heath care
If you search the reading material for the patients name you will find the information needed to answer the first scenario. Just type "Myelin" into the adobe reader search bar.
posted on April 6, 2010 
Chemistry
Thank you very much!
posted on November 1, 2009 
college chemistrythermochemistry
thanx so much!
posted on November 9, 2008 
college chemistrythermochemistry
ya you're right i accidently put the wrong value in!
posted on November 8, 2008 
college chemistrythermochemistry
i have one more question: I know this one has to do with hess's law but i'm not sure of how to get the enthalpy of vaporization? Clculate the enthalpy of vaporization of solid potassium bromide to a gas of ions, the process KBr>K{+1}(g)+Br{1}(g), from
posted on November 8, 2008 
college chemistrythermochemistry
I got: delta H= 482.79J 482.79/150gNH4NO3 x 80gNH4NO3/mol NH4NO3 =2574.88J/mol =2.575 kJ/mol Is this right?
posted on November 8, 2008