Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 
B. 
C. 21
D. 
Answer: D
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Use the given growth rate to find the approximate doubling time and to predict the population in 50 years of a growing suburban town (based on a current population of 100,000).Use the average growth rate between 1970 and 2000, which was about 1.4%.
A. 52 years; population in 50 years = 229,740 B. 60 years; population in 50 years = 174,110 C. 50 years; population in 50 years = 200,000 D. 45 years; population in 50 years = 151,572
Solve the problem.The efficiency e (in percent) of an automobile engine is given by 
where s is the speed 
of the car. Find the average efficiency with respect to the speed for 
to 
A. 32.8% B. 34.5% C. 29.8% D. 64.4%
What is the degree of the expression?(4 - 5x3)5
A. -3 B. 8 C. 5 D. 15
Simplify.(4x)3
A. 64x3 B. 64x C. 4x3 D. 12x