Find the Product AB, If Possible A) $\mathrm { AB }$

question 134

Multiple Choice

Find the product AB, if possible.
- $A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\ 0 & 4 & - 3 \end{array} \right] , B = \left[ \begin{array} { r r } 3 & 0 \\ - 2 & 2 \end{array} \right]$

• A) \(\mathrm { AB }\) is not defined.
• B)
• \(\left[ \begin{array} { r r r } 9 & - 6 & 3 \\ - 6 & 12 & - 8 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r r } 9 & - 6 \\ - 6 & 12 \\ 3 & - 8 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { l l } 9 & 0 \\ 0 & 8 \end{array} \right]\)

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Definitions:

Variable Costs

Expenses that vary in relation to the amount of activity or production volume within a company.

Fixed Costs

Costs that do not change with the level of production or sales, such as rent, salaries, and insurance premiums.

Short Run

A period in economics where the output is influenced by the level of production capacity, and certain economic conditions or costs cannot change.

Long Run

In economics, a period in which all inputs can be adjusted by firms, and there are no fixed costs, allowing for full industry adjustment.