Evaluate 1/x^-2 for x = 7. A. -49 B. 1/49 C. 49

Mathematics

2 answers:

Ganezh [65]2 years ago

6 0

The answer to this question is c

mestny [16]2 years ago

3 0

$\frac{a}{{b}^{n} } = a \times {b}^{ - n}$
Using this formula, it will become:
$1 \times {x}^{2}$
Which equals 1 x 7 x 7 which is 49...
Which means the answer is c..

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