-a^-2 if a=-5
= - 1/a^2
= - (1 / (-5))^2
= - 1/25
= - 0.04
Hi!
So our equation is...
[tex] 5^{-2} [/tex]
1 ÷ 5 ÷ 5 = 0.04
Hope this helps! :)
-Peredhel