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## Homework Statement

Find the vector with the components: Ax=3.2 Ay= -5.15

## The Attempt at a Solution

-5.15^2 + 3.2^2= 36.76

sq root of 36.76= 6.06

So, the magnitude is 6.06. Now for the direction....

CosD=3.2/6.06

ArcCos(0.52)=58.7 degrees

So, the direction is 58.7

Am I right? Thanks so much!