Answers Precalculus Applying Vectors in the Plane — Cumulative examQuestion 49

49

QuizMultiple Choice

Applying Vectors in the Plane — Cumulative exam

Question 49 • Precalculus

Let |a| = 12 at an angle of 25° and |b| = 7 at an angle of 105°. What is the magnitude of a + b? Round to the nearest decimal.

Answer

A

12.8

B

14.9

C

15.4

D

17.3

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