Posts by SSS
Total # Posts: 19
The base of a solid is the region in the first quadrant bounded by the graph of y = 3/(e^x) , the x-axis, the y-axis, and the line x=2. Each cross section of this solid perpendicular to the x-axis is a square. What is the volume of the solid?
April 13, 2015
Marvin borrows $2,500 from the Shady Dealings Loan Company. He is told the interest rate is merely 2%/month and his payment is computed as follows: Loan period = 30 month Interest = 30(0.02)($2,500) = $1,500 Credit investigation and insurance = $50 Total amount owned = $2,500...
March 21, 2015
deposits $1,000 now, $2,000 2 years from now, and $5,000 5 years from now into a fund paying 12% compounded semiannually. a. What sum of money will be accumulated at the end of sixth year? b. What equal deposits of size A, made every 6 months (with the first deposit at t=0 and...
March 21, 2015
I'm having a bit of trouble with the following problem. Thanks! Kevin bought a new car for $22,000. He made a down payment of $5,500 and has monthly payments of $406.69 for 4 years. He is able to pay off his loan at the end of 30 months. Using the actuarial method, find ...
August 3, 2014
The admission fee at an amusement park is 1.5 dollars for children and 4 dollars for adults. On a certain day, 372 people entered the park, and the admission fees collected totaled 1008 dollars. How many children and how many adults were admitted?
January 22, 2013
G = -nFE = J/mol Zn(s)-->Zn^2+(aq)+2e^- 0.765 V Cu^2+(aq)+2e^- -->Cu(s) 0.337 V n = 2, F = 96,485, E =(0.765+0.337) = 1.102 G = -212652.94 J/mol 60g Cu * 1 mol Cu/63.546g Cu = 0.944 mol Max. work = -212652.94 J/mol * 0.944 mol = -200786
April 15, 2012