Simplify. Write the answer using positive exponents only. Leave the answer in exponential notation.-5

A.
B.
C.
D.


Answer: C

Mathematics

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Answer the question.A marathoner ran the 26.2 mile New York City Marathon in 2.5 hrs. Did the runner ever exceed a speed of 9 miles per hour?

What will be an ideal response?

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Solve the problem.A rectangular plot has area 126 yd2 with a perimeter of 46 yd. What is the length of the longest side?

A. 16 yd B. 14 yd C. 12 yd D. 13 yd

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Based on the graph, find the range of y = f(x).f(x) = 

A. (-10, 10) B. (-?, ?) C. (-?, 0) or (0, ?) D. (-?, 0) or {0} or (0, ?)

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Simplify the expression. 

A.
B.
C.
D.
E.

Mathematics