Find the inverse of the matrices if they exist. use the algorithm introduced in the section. [1 0 -2 -3 1 4 2 -3 4]

\frac{1}{2} \left[\begin{array}{ccc}16&6&2\\20&8&2\\7&3&1\end{array}\right]

Step-by-step explanation:

Given is a matrix 3x3 as

|A| =2 hence inverse exists.

Cofactors are 16   20   7

                        6     8    3

                         2     2    1

Hence inverse =

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

she was supposed to add the hours(38.5) and multiply the amount of money she earned(7.50) resulting in $288.75 .

correct me if i'm wrong and if it is i'm truly sorry.