Perform the indicated operation without the use of a calculator and express each answer in scientific notation.

A. 4 × 10-1
B. 4 × 101
C. 4 × 1015
D. 4 × 10-15


Answer: D

Mathematics

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A. 0
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C.  
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What will be an ideal response?

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Reduce the rational expression to lowest terms.

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B.
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D.

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