Find the Inverse of the Matrix, If It Exists
- $$A = \left[ \begin{array} { r r } 5 & 0 \\- 4 & - 6\end{array} \right]$$

question 42

Multiple Choice

Find the inverse of the matrix, if it exists
- $$A = \left[ \begin{array} { r r } 5 & 0 \\- 4 & - 6\end{array} \right]$$

• A)
• \[\left[ \begin{array} { c c }
• - \frac { 1 } { 6 } & 0 \\
• - \frac { 2 } { 15 } & \frac { 1 } { 5 }
• \end{array} \right]\]
• B) \(\mathrm { A }\) is not invertible
• C)
• \[\left[ \begin{array} { c c }
• \frac { 1 } { 5 } & 0 \\
• \frac { 2 } { 15 } & - \frac { 1 } { 6 }
• \end{array} \right]\]
• D)
• \[\left[ \begin{array} { c c }
• \frac { 1 } { 5 } & 0 \\
• - \frac { 2 } { 15 } & - \frac { 1 } { 6 }
• \end{array} \right]\]

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Definitions:

Total Asset Turnover

An economic indicator that assesses how well a business uses its assets to generate sales.

Profit Margin

A financial metric indicating the percentage of revenue that remains as profit after all expenses are deducted.

Statement of Cash Flows

A financial statement that summarizes the amount of cash and cash equivalents entering and leaving a company.

Net Cash Flow

The variance between the amount of cash coming into a business and going out of it during a given time frame.