Find the inverse of the matrix (if it exists). (If the answer does not exist, enter DNE in any cell of the matrix.)

Step-by-step explanation:

This is the formula we will use. Accordingly:

det represents the determinant

if the determinant is 0 then only the inverse matrix will not exist. So let's find the determinant.

Now we multiply the following matrix by 1/1:

a. -0.3 > -0.33

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²