Simplify the square root. Assume all variables represent positive real numbers.

A. 3
B. 9x4
C. 3x5
D. 3x4


Answer: D

Mathematics

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Evaluate.9x, when x = 4

A. 13 B. 36 C. 162 D. 27

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Combine like terms when possible. 2x6 + 5x3 - 5x6

A. 2x15 B. 2x3 C. -3x6 + 5x3 D. cannot be simplified

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Solve the inequality.x2 - 25 ? 0

A. (-?, -5] or [5, ?) B. [-25, 25] C. [-5, 5] D. (-?, -25] or [25, ?)

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