Use a Graphing Calculator to Find the Inverse of the Matrix

question 260

Multiple Choice

Use a graphing calculator to find the inverse of the matrix. Give five decimal places, if necessary.
- $$A = \left[ \begin{array} { c c c } 1.52 & 5.55 & 4 \\- 0.63 & 7.33 & 3.21 \\8.2 & 0.003 & - 2.8\end{array} \right]$$

• A)
• \(\left[ \begin{array} { l l l } 0 & 0 & 1 \\ 0 & 1 & 0 \\ 1 & 0 & 0 \end{array} \right]\)
• B)
• \[\left[ \begin{array} { r c r }
• 0.02137 & - 0.01623 & 0.01192 \\
• - 0.27464 & 0.34436 & 0.00245 \\
• 0.62294 & - 0.47163 & - 0.00792
• \end{array} \right]\]
• C)
• \(\left[ \begin{array} { r c c } 0.65789 & 0.18018 & 0.25 \\ - 1.58730 & 0.13643 & 0.31153 \\ 0.12195 & 333.33333 & - 0.35714 \end{array} \right]\)
• D)
• \[\left[ \begin{array} { r r c }
• 0.15171 & - 0.11491 & 0.08500 \\
• - 0.18145 & 0.27379 & 0.05467 \\
• 0.44411 & - 0.33622 & - 0.10815
• \end{array} \right]\]

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Definitions:

Production Lead Times

The total time it takes from the initiation to the completion of a production process, including both processing and waiting times.

Break-Even Time

The period it takes for a business or project to recoup its initial investment and start generating a profit.

Original Investment

The initial amount of money put into a project, asset, or business venture, used as a basis for calculating returns and profits.

Commencement Of Production

The point at which a company begins manufacturing products or producing goods in a new or existing facility.