Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
1st Edition
ISBN: 9780078682278
Author: McGraw-Hill, Berchie Holliday
Publisher: Glencoe/McGraw-Hill
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Chapter 10.4, Problem 46E
To determine

To write: The equation of the hyperbola on which the lightning strike was located, if sound travels at 1100 feet per second.

Expert Solution & Answer
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Answer to Problem 46E

  x2(1100)2y2(5340.55)2=1

Explanation of Solution

Given information: Forestry: Two ranger stations located 4 miles apart observe a lightning strike. A ranger at station A reports hearing the sound of thunder 2 seconds prior to a ranger at station B . place the two ranger stations on the x -axis with the midpoint between the two stations at the origin. The transverse axis is horizontal.

  Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 10.4, Problem 46E , additional homework tip  1

Calculation:

  Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 10.4, Problem 46E , additional homework tip  2

By the definition of the hyperbola we know the difference of the distances between the towers and the lightning strike = the distance between the vertices (2a) .

The difference was 2 seconds between the towers.

Since sound travels at 1100 feet/sec. The difference would be 2200 feet.

Since we’re centered at the origin, this makes

  a=1100.

We know the distance between the foci is 4 miles.

5280 feet = 1 mile means 21.120 feet.

This means c = 10,560 feet.

If a2+b2=c2b2=(10560)2(9110)2b=5340.55

Therefore equation is:

  x2(1100)2y2(5340.55)2=1

Chapter 10 Solutions

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition

Ch. 10.1 - Prob. 11CFUCh. 10.1 - Prob. 12ECh. 10.1 - Prob. 13ECh. 10.1 - Prob. 14ECh. 10.1 - Prob. 15ECh. 10.1 - Prob. 16ECh. 10.1 - Prob. 17ECh. 10.1 - Prob. 18ECh. 10.1 - Prob. 19ECh. 10.1 - Prob. 20ECh. 10.1 - Prob. 21ECh. 10.1 - Prob. 22ECh. 10.1 - Prob. 23ECh. 10.1 - Prob. 24ECh. 10.1 - Prob. 25ECh. 10.1 - Prob. 26ECh. 10.1 - Prob. 27ECh. 10.1 - Prob. 28ECh. 10.1 - Prob. 29ECh. 10.1 - Prob. 30ECh. 10.1 - Prob. 31ECh. 10.1 - Prob. 32ECh. 10.1 - Prob. 33ECh. 10.1 - Prob. 34ECh. 10.1 - Prob. 35ECh. 10.1 - Prob. 36ECh. 10.1 - Prob. 37ECh. 10.1 - Prob. 38ECh. 10.1 - Prob. 39ECh. 10.1 - Prob. 40ECh. 10.1 - Prob. 41ECh. 10.1 - Prob. 42ECh. 10.1 - Prob. 43ECh. 10.1 - Prob. 44ECh. 10.2 - Prob. 1CFUCh. 10.2 - Prob. 2CFUCh. 10.2 - Prob. 3CFUCh. 10.2 - Prob. 4CFUCh. 10.2 - Prob. 5CFUCh. 10.2 - Prob. 6CFUCh. 10.2 - Prob. 7CFUCh. 10.2 - Prob. 8CFUCh. 10.2 - Prob. 9CFUCh. 10.2 - Prob. 10CFUCh. 10.2 - Prob. 11CFUCh. 10.2 - Prob. 12CFUCh. 10.2 - Prob. 13CFUCh. 10.2 - Prob. 14CFUCh. 10.2 - Prob. 15ECh. 10.2 - 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