Find the integral.
A. 3x3 + 15x - x-1 + C
B. x2 + 5 ln
+ C
C. x4 + 25 ln
+ C
D. 3x3 + 30x - x-1 + C
Answer: B
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Solve the problem.The number of VHS movie rentals has declined since the year 2000 due to the popularity of DVDs, as the following table shows. The exponential regression equation was found to be where x represents the number of years since 2000. According to the exponential model, what is the decay rate for the number of VHS rentals?
A. 0.8209 B. 1.8209 C. -8.92 D. 0.1791
Solve the absolute value equation. + 5 = 7
A. x = - , 3
B. no solution
C. x = - , 3
D. x = 3
Solve the equation.log39 = x
A. {12} B. {2} C. {27} D. {3}
Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by what do 400 units cost? Round your answer to the nearest cent.
A. $899.93 B. $12,000.00 C. $100.00 D. $837.21