Find the dot product v · w.
-$$\mathbf { v } = - 12 \mathbf { i } - 15 \mathbf { j } , \quad \mathbf { w } = - 5 \mathbf { i } - 8 \mathbf { j }$$
A) 60
B) 120
C) 180
D) $- 60$

Name: Find the dot product v · w. -\[\mathbf { v } = - 12 \mathbf { i } - 15 \mathbf { j } , \quad \mathbf { w } = - 5 \mathbf { i } - 8 \mathbf { j }\] A) 60 B) 120 C) 180 D) $- 60$
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Question

Quizplus · Accepted Answer

The dot product $v \cdot w$ is calculated as $(-12)(-5) + (-15)(-8) = 60 + 120 = 180.$

Find the Dot Product V · W v=−12i−15j,w=−5i−8j\mathbf { v } = - 12 \mathbf { i } - 15 \mathbf { j } , \quad \mathbf { w } = - 5 \mathbf { i } - 8 \mathbf { j }v=−12i−15j,w=−5i−8j

Find the Dot Product V · W $\mathbf { v } = - 12 \mathbf { i } - 15 \mathbf { j } , \quad \mathbf { w } = - 5 \mathbf { i } - 8 \mathbf { j }$