Simplify. (Assume all variables are nonzero.)
A. (a - 7b)30
B. (a - 7b)10
C. (a - 7b)2
D. (a - 7b)200
Answer: B
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Evaluate the integral.
A. 
cosh e5x + C
B. - 
cosh e5x + C
C. 5 e5x cosh e5x + C
D. 
e5x cosh e5x + C
Solve the problem.A marine biologist determines that the size, p, of a population of crabs, after t days can be modeled by the function 
Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 547 days B. 707 days C. 911 days D. 1512 days
Use an annual percentage rate table to solve the problem.A college student purchased a used car for $4000. He paid 8% down and then paid 18 monthly payments of $216.79. Determine the APR of the loan to the nearest one-half of a percent.
A. 8.5% B. 7.0% C. 6.0% D. 7.5%
Find the real solutions of the equation.x4 - 3x3 + 5x2 - x - 10 = 0
A. {1, 2} B. {-2, 1} C. {-1, -2} D. {-1, 2}