Solve the Problem $\mathbf { v } = 9 \mathbf { i } + 3 \mathbf { j }$

Multiple Choice

Solve the problem.
-If $\mathbf { v } = 9 \mathbf { i } + 3 \mathbf { j }$ , what is $\| 8 \mathbf { v } \|$ ?

A) $48 \mathrm { i } \sqrt { 2 }$
B) $24 \sqrt { 10 }$
C) $- 24 \sqrt { 10 }$
D) $48 \sqrt { 2 }$