Find the Inverse of the Matrix $\left[ \begin{array} { c c } 8 & 16 \\ - 24 & - 40 \end{array} \right]$

question 56

Multiple Choice

Find the inverse of the matrix $\left[ \begin{array} { c c } 8 & 16 \\ - 24 & - 40 \end{array} \right]$ .

• A) \(\frac { 1 } { 7 } \left[ \begin{array} { c c } 8 & 16 \\ - 24 & - 40 \end{array} \right]\)
• B) \(\frac { 1 } { 8 } \left[ \begin{array} { c c } - 5 & - 2 \\ 3 & 1 \end{array} \right]\)
• C) \(\left[ \begin{array} { c c } - 8 & - 16 \\ 40 & 24 \end{array} \right]\)
• D) \(\left[ \begin{array} { c c } 8 & - 24 \\ 32 & - 56 \end{array} \right]\)
• E) \(\frac { 1 } { 13 } \left[ \begin{array} { c c } - 8 & - 16 \\ - 24 & 40 \end{array} \right]\)

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Definitions:

World Price

The international market price at which goods and services are bought and sold on the global market.

International Trade

The exchange of goods and services between countries, which allows for greater variety, competition, and efficiency in markets globally.

Consumer Surplus

The distinction between the price consumers are willing to offer for a good or service and the price they really pay.

Agricultural Subsidies

Agricultural subsidies are financial incentives provided by the government to farmers or agribusinesses to supplement their income, manage the supply of agricultural commodities, and influence the cost and supply of such commodities.