AnswersMA-PrecalculusCumulative Exam — Cumulative examQuestion 31
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QuizMultiple Choice

Cumulative Exam — Cumulative exam

Question 31 • MA-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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