Precalculus Examples

$- 1.1 {(5)}^{- 2}$

Step 1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$- 1.1 \frac{1}{5^{2}}$

Step 2

Raise $5$ to the power of $2$ .

$- 1.1 (\frac{1}{25})$

Step 3

Combine $- 1.1$ and $\frac{1}{25}$ .

$\frac{- 1.1}{25}$

Step 4

Divide $- 1.1$ by $25$ .

$- 0.044$