# Posts by sss

Total # Posts: 19

**calculus**

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?

**eng.Economic**

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...

**eng.Economic**

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...

**math**

a wire of length 24cm is bent to form a square.find the area of the square formed.

**Math**

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 ...

**Quantum Physics**

ii is 0 0 0 0

**Physics**

0 --I,H

**lts statment**

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?

**Chemistry**

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

**chemistry**

calculate the number of gram of Al2S3 which can be prepared by the reaction of 20 gram of Al and 30 gram of sulpher . how much the non limiting reactant is in excess?

**physics**

ikrthissitesucksssss

**chemistry**

how many liters of hydrogen gas measured at 1.05 atm and negative 25 degrees will be produced when 5.00 grams of magnesium metal is dropped into excess hydrochloric acid?

**math**

qweqwe

**math**

In how many ways can 7 people be lined up to see a movie if Ben must be at the start of the line? is the answer 720?

**math**

In how many ways can 7 people be lined up to see a movie if Ben must be at the start of the line? is the answer 720?

**Math**

wrong!

**science**

IS GAS THE MOST IMPORTANT STATE OF MATTER?