Add and Subtract Matrices
-Let $\mathrm { A } = \left[ \begin{array} { r r r } 4 & - 10 & 2 \\ 8 & - 12 & - 3 \\ 4 & 5 & 9 \end{array} \right]$

question 94

Multiple Choice

Add and Subtract Matrices
-Let $\mathrm { A } = \left[ \begin{array} { r r r } 4 & - 10 & 2 \\ 8 & - 12 & - 3 \\ 4 & 5 & 9 \end{array} \right]$ and $\mathrm { B } = \left[ \begin{array} { r r r } 0 & 10 & 3 \\ 4 & 0 & - 5 \\ - 5 & 8 & - 5 \end{array} \right]$ . Find $\mathrm { A } - \mathrm { B }$

• A)
• \(\left[ \begin{array} { r r r } 4 & - 20 & - 1 \\ 4 & - 12 & 2 \\ 9 & - 3 & 14 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { r r r } 4 & 0 & - 1 \\ 4 & - 12 & 2 \\ 1 & - 3 & 4 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r r r } 4 & 20 & - 1 \\ 4 & - 12 & 2 \\ 9 & 3 & 14 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { r r r } 4 & 0 & 5 \\ 12 & - 12 & - 8 \\ - 1 & 13 & 4 \end{array} \right]\)

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Definitions:

Total Manufacturing Costs

The aggregate of all costs involved in producing a finished product, including direct materials, direct labor, and manufacturing overhead.

Manufacturing Overhead Applied

The amount of manufacturing overhead costs allocated to individual products or product lines based on a predetermined overhead rate.

Direct Materials

Raw materials that are directly used in the manufacturing of a product and can be easily traced back to the finished goods.

Predetermined Overhead Rate

A rate used to allocate manufacturing overhead to individual products or job orders, based on a predetermined activity base.