Find the Indicated Matrix $A = \left[ \begin{array} { r r r } 7 & - 4 & 8 \\ - 6 & 5 & - 1 \\ 0 & 6 & - 3 \end{array} \right]$

question 22

Multiple Choice

Find the indicated matrix.
-Let $A = \left[ \begin{array} { r r r } 7 & - 4 & 8 \\ - 6 & 5 & - 1 \\ 0 & 6 & - 3 \end{array} \right]$ and $B = \left[ \begin{array} { r r r } - 2 & - 6 & - 1 \\ - 7 & - 4 & 3 \\ - 3 & - 9 & - 5 \end{array} \right]$ . Find $A - B$

• A) \(\left[ \begin{array} { r r r } 5 & - 10 & 7 \\ - 13 & 1 & 2 \\ - 3 & - 3 & - 8 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r r } 9 & 2 & 9 \\ 1 & 9 & - 4 \\ 3 & 15 & 2 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } 5 & - 10 & 7 \\ - 13 & 1 & - 8 \\ - 3 & - 3 & 2 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r r } 9 & 2 & 9 \\ 1 & 9 & 2 \\ 3 & 15 & - 4 \end{array} \right]\)

---

Definitions:

Consumer Surplus

The economic benefit or satisfaction received by consumers when they pay a price lower than what they are willing to pay.

Milkshakes

A sweet beverage made by blending milk, ice cream, and flavorings or sweeteners such as butterscotch, caramel sauce, or chocolate syrup.

Consumer Surplus

The difference between the total amount that consumers are willing to pay and the total amount that they actually pay.

Demand Curve

A graph showing the relationship between the price of a good and the quantity of the good that consumers are willing and able to purchase at various prices.