Simplify the radical. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: D
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Evaluate the sum.
A. 133 B. 147 C. 145 D. 140
Find the APR to the nearest 0.5%. Use the Annual Percentage Rate table if necessary.
The owner of an automobile repair center purchased new electronic diagnostic equipment for $20,000. He paid 
down and then paid 60 monthly payments of $386.43. Determine the APR of the loan to the nearest 0.5%.
A. 9.0% B. 9.5% C. 8.5% D. 8.0%
Solve the problem.The displacement s (in cm) of a linkage joint of a robot is given by s = (7t - t2)2/3, where t is the time (in s). Find the velocity of the joint for t = 5.2 s.
A. -1.08 cm/s B. -4.78 cm/s C. 0.95 cm/s D. -0.51 cm/s
150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.Approximately what percent of the students scored between 65 and 75 points?
A. 34% B. 10% C. 68% D. 95% E. none of these