Use the Vectors $\mathbf { u } = \langle 3,5 \rangle$

Use the vectors $\mathbf { u } = \langle 3,5 \rangle$ , $\mathbf { v } = \langle - 2,2 \rangle$ ,and $\mathbf { w } = \langle 5 , - 3 \rangle$ to find the indicated quantity.State whether the result is a vector or a scalar.​ $( 3 \mathbf { w } \cdot \mathbf { v } ) \mathbf { u }$ ​

A) $\langle - 144 , - 236 \rangle$ ;vector
B) $\langle - 144 , - 242 \rangle$ ;vector
C) $\langle - 144 , - 240 \rangle$ ;vector
D) -240;scalar
E) $\langle - 144 , - 244 \rangle$ ;vector

Correct Answer:

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