2. Which of the following equations solves for the length a in AABC? A. a² = 15² + 13² - 2(15)(13) cos 40° - B. a² = √√15² + 13² — 2(15)(13) cos 40° C. a = 15² + 13² - 2(15) (13) cos 40° D. a = √152 + 13² - (15) (13) cos 40° 15 B 40% 13 10
2. Which of the following equations solves for the length a in AABC? A. a² = 15² + 13² - 2(15)(13) cos 40° - B. a² = √√15² + 13² — 2(15)(13) cos 40° C. a = 15² + 13² - 2(15) (13) cos 40° D. a = √152 + 13² - (15) (13) cos 40° 15 B 40% 13 10
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 55E
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Question
A answer the question below
![2. Which of the following equations solves for the length a in AABC?
A. a² = 15² + 13² - 2(15)(13) cos 40°
-
B. a² = √√15² + 13² — 2(15)(13) cos 40°
C. a = 15² + 13² - 2(15) (13) cos 40°
D. a = √√152 + 13²
-
(15)(13) cos 40°
15
B
40%
13
10](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F59670892-08bd-464e-bb14-eaac684e4d34%2F5867c6c5-f78f-4dab-a694-1c97ecdbb58d%2Faqtyfcr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. Which of the following equations solves for the length a in AABC?
A. a² = 15² + 13² - 2(15)(13) cos 40°
-
B. a² = √√15² + 13² — 2(15)(13) cos 40°
C. a = 15² + 13² - 2(15) (13) cos 40°
D. a = √√152 + 13²
-
(15)(13) cos 40°
15
B
40%
13
10
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