Answers Precalculus Dot Product and Work — Unit testQuestion 7

7

QuizMultiple Choice

Dot Product and Work — Unit test

Question 7 of 15 • Precalculus

Let u = ⟨1, 5⟩, v = ⟨–3, 3⟩, and w = ⟨2, 3⟩. What is the direction angle of 4w – (2u + v)?

Answer

A

θ = 59.0°

B

θ = 173.7°

C

θ = 276.3°

D

θ = 353.7°

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