Factor the expression completely. If the polynomial is prime, state this as your answer.a3b3 + 512
A. (ab - 8)(a2b2 + 64)
B. (ab + 8)(a2b2 - 8ab + 64)
C. (ab - 8)(a2b2 + 8ab + 64)
D. (ab + 8)(a2b2 - 64)
Answer: B
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Find the derivative of y.y = ln(sech (9x + 8))
A. -9 tanh (9x + 8)
B. 
C. -tanh (9x + 8)
D. tanh (9x + 8)
Solve the problem.A giant sequoia is measured to have a circumference of 19.3 meters. What is the diameter to the nearest hundredth? (Use 3.14 to approximate ?.)
A. 3.07 m B. 6060.2 m C. 61.46 m D. 6.15 m
Solve the problem.Assume the cost of a car is $20,000. With continuous compounding in effect, the cost of the car will increase according to the equation C = 20,000ert, where r is the annual inflation rate and t is the number of years. Find the number of years it would take to double the cost of the car at an annual inflation rate of 5.9%. Round the answer to the nearest hundredth.
A. 167.86 years B. 11.75 years C. 1.68 years D. 179.60 years
Change the fraction to a decimal. Round as indicated.1
ten thousandths
A. 0.7693 B. 0.3077 C. 1.5385 D. 7.6925