Question

What is the value of the expression 7^−3 A. 1/343 B.−21 C.343 D.1/343

Answer 1

Answer: A. $\frac{1}{343}$

Step-by-step explanation:

First, apply exponent rule.

$=\frac{1}{7^3}$

$7^3=7*7*7=343$

$=\frac{1}{343}$

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-Charlie