Vectors once again right answers only PLEASE HELP ME THANK YOU

asked May 3, 2019 78.8k views

0 votes

by SMKS

8.5k points

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3 votes

You have vector
$\vec{a}=(-3,2).$

The magnitude of the vector
$\vec{a}=(x_a,y_a)$ can be obtained using formula:

$|\vec{a}|=√(x_a^2+y_a^2).$

Then

$|\vec{a}|=√((-3)^2+2^2)=√(9+4)=√(13).$

Answer: correct choice is A.

DontRelaX answered May 7, 2019

8.2k points

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