Evaluate $2 \times 2$ Determinant $$\left| \begin{array} { r r } - 2 & - 5 \\- 1 & - 9\end{array} \right|$$

question 130

Multiple Choice

Evaluate $2 \times 2$ determinant. $$\left| \begin{array} { r r } - 2 & - 5 \\- 1 & - 9\end{array} \right|$$

• A) 13
• B) 20
• C) -5

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Definitions:

Marginal Benefit

The additional satisfaction or utility that an individual gains from consuming one more unit of a good or service.

Marginal Cost

The additional expenditure involved in producing one additional unit of a good or service.

Product X

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Resource Allocation

The process of assigning and distributing available resources to various uses in an economy, often in order to maximize efficiency or achieve a desired outcome.