Use the Vectors $\mathbf { u } = \langle 2,4 \rangle$

Multiple Choice

Use the vectors $\mathbf { u } = \langle 2,4 \rangle$ , $\mathbf { v } = \langle - 4,5 \rangle$ , and $\mathbf { w } = \langle 5 , - 4 \rangle$ to find the indicated quantity.State whether the result is a vector or a scalar.
$( \mathbf { u } \cdot 2 \mathbf { v } ) \mathbf { w }$

A) -96; scalar
B) $\langle 120 , - 92 \rangle$ ; vector
C) $\langle 120 , - 94 \rangle$ ; vector
D) $\langle 120 , - 100 \rangle$ ; vector
E) $\langle 120 , - 96 \rangle$ ; vector