Question

evaluate: 5–^2 =
WILL MARK AS BRAINLIEST

Answer 1

When you have a negative exponent, you move it to the other side of the fraction to make the exponent positive.

For example:

$x^{-2}$ or $\frac{x^{-2}}{1}=\frac{1}{x^2}$

$\frac{1}{y^{-2}}=\frac{y^2}{1}$  or  y²

So:

$5^{-2}=\frac{1}{5^2}=\frac{1}{25}$

Your answer is B

Answer 2

The correct evaluation of   $5^{-2}$  is  $\frac{1}{25}$

How to evaluate the expression?

• We know that $a^{-b}$ can be written as  $\frac{1}{a^{b} }$

∴ $5^{-2}$ can be written as  $\frac{1}{5^{2} }$

So,   $5^{-2}$  = $\frac{1}{25}$

Option B is correct.

Find more about "Power and base" here https://brainly.com/question/7447978

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