Solve the Problem $\mathbf { u } = \langle - 5,7 \rangle , \mathbf { v } = \langle 4,6 \rangle$

question 185

Multiple Choice

Solve the problem.
-If $\mathbf { u } = \langle - 5,7 \rangle , \mathbf { v } = \langle 4,6 \rangle$ , and $\mathbf { w } = \langle - 11,2 \rangle$ , evaluate $\mathbf { u } \cdot ( \mathbf { v } + \mathbf { w } )$ .

• A) 81
• B) 99
• C) 91
• D) 72

---

Definitions:

Margin Of Safety

The difference between actual or expected sales and sales at the break-even point; it measures the risk of incurring a loss.