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Exercises 81-83 will help you prepare for the material covered in the next section. 81. Find the obtuse angle B, rounded to the nearest degree, satisfying 62 + 4? – 92 cos B = 2.6.4 82. Simplify and round to the nearest whole number: V26(26 – 12)(26 – 16)(26 – 24). 83. Two airplanes leave an airport at the same time on different runways. The first plane, flying on a bearing of N66°W, travels 650 miles after two hours. The second plane, flying on a bearing of S26°W, travels 600 miles after two hours. Illustrate the situation with an oblique triangle that shows how far apart the airplanes will be after two hours.

Exercises 81-83 will help you prepare for the material covered in the next section. 81. Find the obtuse angle B, rounded to the nearest degree, satisfying 62 + 4? – 92 cos B = 2.6.4 82. Simplify and round to the nearest whole number: V26(26 – 12)(26 – 16)(26 – 24). 83. Two airplanes leave an airport at the same time on different runways. The first plane, flying on a bearing of N66°W, travels 650 miles after two hours. The second plane, flying on a bearing of S26°W, travels 600 miles after two hours. Illustrate the situation with an oblique triangle that shows how far apart the airplanes will be after two hours.

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Exercises 81-83 will help you prepare for the material covered in the next section. 81. Find the obtuse angle B, rounded to the nearest degree, satisfying 62 + 4? – 92 cos B = 2.6.4 82. Simplify and round to the nearest whole number: V26(26 – 12)(26 – 16)(26 – 24). 83. Two airplanes leave an airport at the same time on different runways. The first plane, flying on a bearing of N66°W, travels 650 miles after two hours. The second plane, flying on a bearing of S26°W, travels 600 miles after two hours. Illustrate the situation with an oblique triangle that shows how far apart the airplanes will be after two hours.
Transcribed Image Text:Exercises 81-83 will help you prepare for the material covered in the next section. 81. Find the obtuse angle B, rounded to the nearest degree, satisfying 62 + 4? – 92 cos B = 2.6.4 82. Simplify and round to the nearest whole number: V26(26 – 12)(26 – 16)(26 – 24). 83. Two airplanes leave an airport at the same time on different runways. The first plane, flying on a bearing of N66°W, travels 650 miles after two hours. The second plane, flying on a bearing of S26°W, travels 600 miles after two hours. Illustrate the situation with an oblique triangle that shows how far apart the airplanes will be after two hours.
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