The Matrices a and B Are Defined as Follows: a =

question 18

Multiple Choice

The matrices A and B are defined as follows: A = $\left( \begin{array} { r r } 4 & 5 \\- 1 & 6\end{array} \right)$ , B = $\left( \begin{array} { r r } 1 & - 1 \\2 & 0\end{array} \right)$ Carry out the indicated matrix operation.
A + B

• A) \(\left( \begin{array} { l l }
• 5 & 4 \\
• 1 & 6
• \end{array} \right)\)
• B) \(\left( \begin{array} { l l }
• 1 & 5 \\
• 5 & 6
• \end{array} \right)\)
• C) \(\left( \begin{array} { l l }
• 5 & 6 \\
• 1 & 4
• \end{array} \right)\)
• D) \(\left( \begin{array} { l l }
• 5 & 4 \\
• 1 & 7
• \end{array} \right)\)
• E) \(\left( \begin{array} { l l }
• 5 & 1 \\
• 1 & 5
• \end{array} \right)\)

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Definitions:

Market Demand

The total quantity of a product or service that all consumers in a market are willing and able to purchase at various prices.

Increases

This term refers to a situation where a quantity or quality of something goes up or becomes more.

Constant-Cost Industry

An industry where the costs of production do not change as the overall level of production increases or decreases.

Long-Run Supply

The total amount of a good or service that is available in the market over a long term, taking into account adjustments in production and entry or exit of firms.