Simplify the radical. Indicate if the radical is not a real number. Assume that x represents a positive real number.
A. 264
B. Not a real number
C. -23
D. 23
Answer: D
Mathematics
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Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.x1/9 ? x8/9
A. x
B. x8/81
C. x8/9
D. 
Mathematics
Find the area or volume.Find the volume of the solid generated by revolving the region under the curve 
in the first quadrant about the y-axis.
A. 4?3 B. 4? C. 16? D. 2?
Mathematics
Solve the problem by applying the Fundamental Counting Principle.How many different 4-letter radio-station call letters can be made if the first letter must be K or W, repeats are allowed, but the call letters cannot end in an O?
A. 456,976 B. 35,152 C. 33,800 D. 16,900
Mathematics
Round to the nearest thousand.7334
A. 8000 B. 7000 C. 7330 D. 7300
Mathematics