Perform the matrix operation.Given A = 
and B = 
, find AB.
A. 
B. 
C. 
D. 
Answer: D
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Solve.Find the volume of a tent having the shape of a rectangular solid of length 14 ft, width 10 ft, and height 7 ft topped by a rectangular pyramid of the same width and length with height 5 ft. (Round to the nearest hundredth unit.)
A. 466.6 ft3 B. 1213.3 ft3 C. 233.3 ft3 D. 1960.0 ft3
Solve the problem.In Little League, Andrew hit 8 home runs in 80 at-bats. What percent of the at-bats were not home runs?
A. 87% B. 92% C. 90% D. 95%
Determine whether the function is even, odd, or neither.f(x) = -2x3 + 9x
A. Even B. Odd C. Neither
Solve the problem.The function f(x) = 500(0.5)x/100 models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. Find the amount of radioactive material in the vault after 
Round to the nearest whole number.
A. 350 pounds B. 179 pounds C. 189 pounds D. 305 pounds