You isolate the v and move 3 units down to the left which leads u to 10. Hope this helped
Cos(x°) = (√3)/2
cos⁻¹[(√3)/2] = x°, that means x° = 30°
Answer:
A. 
Step-by-step explanation:
Each mark represent 0.1 unit, so if you count from 0 to
you get 0.5 that is exactly the same that
(for convention the left of the 0 is taken as negative and the right as positive).
C. 30 degrees because it mirrors the angle of P.