Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 3ab
B. 3
C. -3a2b
D. 3ab
Answer: C
Mathematics
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Factor.8x2 - 8x - 48
A. Prime B. 8(x + 2)(x - 3) C. (8x + 16)(x - 3) D. 8(x - 2)(x + 3)
Mathematics
Provide an appropriate response.15 is not a prime number because
A. its factor pairs are 3 × 5. B. 15 is not divisible by any number except 1 and itself. C. it has 1 as a factor. D. its factor pairs are 1 × 15, 3 × 5.
Mathematics
Solve the problem.During a storm in Anchorage, Alaska, the temperature was 10°F at noon. Then it dropped 5°F each hour for the next 2 hours, followed by an additional drop of 7°F the third hour. What was the temperature at 3 P.M.?
A. -5°F B. 7°F C. -7°F D. -8°F
Mathematics
Use rules of exponents to simplify the expression. Use positive exponents to write your answer.
A. 411 B. 1 C. 27 D. 211
Mathematics