Solve the problem.A rectangular swimming pool has a parabolic drain plate at the bottom of the pool. The drain plate is shaped like the region between  and the line  from  to   The pool is 10 ft by 20 ft and 8 ft deep. If the pool is being filled at a rate of 

alt="" style="vertical-align: -4.0px;" /> what is the force on the drain plate after 5 hours of filling? Round your answer to two decimal places if necessary.

A. 208 lb
B. 611.52 lb
C. 195.52 lb
D. 97.76 lb

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Answer: C

Mathematics

Determine whether the given functions are inverses of each other.f(x) = , x ? 0, g(x) = x2, x ? 0

A. Yes B. No

Simplify the expression. If any variables exist, assume that they are positive.13 - 4

A. 9
B. -3
C. 13 - 4
D. 3

The given pattern continues. Write down the nth term of the sequence suggested by the pattern.2, 10, 18, 26, 34, ...

A. an = 8n - 3 B. an = 6n - 8 C. an = 2(4n - 3) D. an = 2(8)n-1

Without graphing, determine whether the graph of the quadratic function opens up or opens down. Also, determine of the graph will be wider or narrower than the graph of y = x2.f(x) = 3x + x2 - 5

A. down, wider B. up, wider C. up, narrower D. down, narrower