Find a. If necessary, round your answer to the nearest hundredth.
A. 1.64
B. 0.52
C. 0.78
D. 2.32
Answer: C
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Solve the exponential equation.2(1 + 2x) = 8
A. -1 B. 4 C. 1 D. 2
Given that the polynomial function has the given zero, find the other zeros.f(x) = x4 - 9; 
i
A. -
i
B. -
i, 3, -3
C. -
i, 
, -
D. 
Solve the problem.The amount of water (in gallons) in a leaky bathtub is given in the table below. Using a graphing utility, fit the data to a third degree polynomial (or a cubic). Then approximate the time at which there is maximum amount of water in the tub, and estimate the time when the water runs out of the tub. Express all your answers rounded to two decimal places.
A. maximum amount of water after 8.23 minutes; water runs out after 19.73 minutes B. maximum amount of water after 5.31 minutes; water never runs out C. maximum amount of water after 5.31 minutes; water runs out after 8.23 minutes D. maximum amount of water after 5.37 minutes; water runs out after 11.06 minutes
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 