Find the Vector $\mathbf { z }$ , Given $\mathbf { u } = \langle - 3,3,9 \rangle$

Find the vector $\mathbf { z }$ , given $\mathbf { u } = \langle - 3,3,9 \rangle$ and $\mathbf { v } = \langle - 7,5,7 \rangle$ . $\mathbf { z } = - 3 \mathbf { u } - 5 \mathbf { v }$

A) $\langle 2 , - 4 , - 20 \rangle$
B) $\langle 44 , - 34 , - 62 \rangle$
C) $\langle - 10,8,16 \rangle$
D) $\langle 36 , - 30 , - 66 \rangle$
E) $\langle - 26,16,8 \rangle$

Correct Answer:

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