Answer:
1/81
Step-by-step explanation:
The negative exponent law states that for any real numbers a (non-zero) and m, the following is always true:
[tex]a^{-m} = \frac1{a^m}[/tex]
Therefore, for a = 9 and m = 2:
[tex]9^{-2} = \frac1{9^2} = \frac1{81}[/tex]
9^-2 is equal to 1/81.
