Find the area of the surface generated by revolving the curve x = (e^y + e^-y) / 2 from x = 0 to x = ln (2).

A crane able can support a maximum load of 15,000 kg. If a bucket has a mass of2,000 kg and gravel has a mass of 1,500 kg for every cubic meter, how many cubicmeters of gravel can be safely lifted by the crane?

Tom found some foreign coins in a box. The coins were marked m, a, t, h his uncle told him that each letter on the coin has a different value in $us. M = $10, a=$5, t=$50 and h=$100. If Tom found 3m coins 5t coins 2h coins and 7a coins.

What's the perimeter of a square with a side measurement of 6 inches

Jordan bikes at a speed of 8 2/3 mph, how many miles will he bike in 3 hours and 6 minutes

Arun's restaurant bill is $58, and he wants to leave the waiter an 18 percent tip. What will Arun's total bill be?

What is 8 divided by 19

How many vertices does a cone have? explain.

Where could you insert parentheses in The problem 310-20:2*5+13 so the answer should be 130

What are the 12 rules of shading inequalities?

A club with nine girls and six boys is choosing two representatives to meet with the other clubs. The probability that the club chooses a girl and then a boy for the representative spots is.