Determine Whether the Matrices Are Inverses $$\left[ \begin{array} { l l } 9 & 4 \\4 & 4\end{array} \right] , \left[ \begin{array} { r r } - 0.2 & 0.2 \\0.2 & - 0.45\end{array} \right]$$

Determine whether the matrices are inverses.
- $$\left[ \begin{array} { l l } 9 & 4 \\4 & 4\end{array} \right] , \left[ \begin{array} { r r } - 0.2 & 0.2 \\0.2 & - 0.45\end{array} \right]$$