Represent the radical as a radical with a smaller root index. Assume any variables represent nonnegative values.
A. 
B. 
C. 
D. 
Answer: C
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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.The number of students scoring 65 points or more is approximately
A. 75. B. 95. C. 65. D. 50. E. none of these
Solve the equation.
(x + 27) - 
(x - 3) = x + 5
A. 
B. 
C. 
D. 
Solve the problem.The expression 0.60(226 - a - r) + r is used to obtain the target heart rate for a cardiovascular workout for a nonathletic female with age a and resting heart rate r. Find the target heart rate for a 19-year-old nonathletic female with a resting heart rate of 60 beats per minute.
A. 144.6 beats/min B. 148.2 beats/min C. 136.8 beats/min D. 147 beats/min
Use synthetic division to find the quotient and remainder when the first polynomial is divided by the second.x5 - 1, x - 1
A. x4 + x3 + x2 + x + 1; x - 1 B. x5 + x4 + x3 + x2 + x + 1; 0 C. x4 + x3 + x2 + x + 1; 0 D. x5 + x4 + x3 + x2 + x + 1; x - 1