Total # Posts: 145
math (interests & percentss)
i need help with these problems below ! mike deposited $500 for 9 months at 8%, compounded quarterly. a. how many times was interest added to mike's account? b. what percent interest was added each time? c. what was the balance in mike's account at the end of 9 months...
November 18, 2010
A sample of gas collected over water at 42 C occupies a volume of one liter. The wet gas has a pressure of 0.986 atm. The gas is dried, and the dry gas occupies 1.04 L with a pressure of 1.00 atm at 90 C. Using this information, calculate the vapor pressure of water at 42 C. ...
October 14, 2010
When 4.0 mol of CCl4 reacts with an excess of HF, 3.0 mol of CCl2F2 (Freon) is obtained. The equation for the reaction is CCl4(l) + 2HF(g) --> CCl2F2(l) + 2HCl9g) State which of the statements are true about the reaction and make the false statements true. (a) The ...
September 15, 2010
When 15.0 g of ethyl alcohol, C2H5OH, is dissolved in 750 g of formic acid, the freezing point of the solution is 7.20 C. The freezing point of the pure formic acid is 8.40 C. Evaluate Kf for fomic acid.
July 16, 2010
1.The most important tool the Fed has to control the money supply is a. changing the federal funds rate. b. changing the required reserve ration. c. open market operations. d. changing the discount rate 2. Banks use their excess reserves to a. make new loans to customers. b. ...
June 18, 2010
which of the following is necessary for large-scale farming to take place in southwest asia? a. use of fossil waters b. dams and irrigation systems c. desalinization and water treatment processes d. water from and oasis
May 11, 2010
Carl bought a heavy-duty truck (5-year class recovery property) for his business service on April 30. The truck is not considered a passenger automobile for purposes of the listed property and luxury automobile limitations. The truck has a depreciable basis of $39,080 and an ...
March 1, 2010
If RS= 20, UT = x + 10, RU = y + 3, and ST = 15, find the values of x and y. x = 10, y = 12 x = 30, y = 18 x = 5, y = 17 x = 23, y = 25 Cant figure this out just explain, try not to give me the answers!!! P.S. you guys and gals are incredible, very nice!!! thanks from the ...
December 12, 2009
you equation 2would be: $11.95 = $4.95 + .35x(<trying to find) (^total) (first, sub. 4.95 from both sides.) $7.00 = .35x (now, you divide each side by .35 to get X by its self.) 20=x OR x=20 (.35 didided by .35 will cancle each other out. you should be left with x=20. that ...
December 2, 2009
Delta H is given and is-6186.0 Calculate the difference, deltaH-deltaE=delta(PV) for the combustion reaction of 1 mole of methyl octane. (Assume standard state conditions and 298 K for all reactants and products.)
November 14, 2009
Two buckets of sand hang from opposite ends of a rope that passes over an ideal pulley. One bucket is full and weighs 110 N; the other bucket is only partly filled and weighs 50 N . Initially, you hold onto the lighter bucket to keep it from moving. What is the tension in the ...
September 29, 2009
your teacher is giving you a test worth 100 points containing 40 questions.There are two-point and four-point questions on the test.How many of each type of question are on the test?
March 3, 2008
what are a+ topics i could use to write a 2 page 7th grade science report http://en.wikipedia.org/wiki/Ursinae_hybrid http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20060511/grizzly_cross_060511?s_name=&no_ads=
October 24, 2006