Explanation Given: The height of the screen is 63% of its width and John’s flat screen television is 26 inches. Calculation: Let x be the width for finding area of Kathy’s screen. Now, according to the question, its height will be h = 63 % of x = 0 ⋅ 63 x By Pythagorean theorem: x 2 + ( 0.63 ) 2 = 4 6 2 x 2 + 0 ⋅ 3969 x 2 = 2116 x 2 ( 1 + 0.3969 ) = 2116 1 ⋅ 3969 x 2 = 2116 This implies x 2 = 1514 ⋅ 78 x = ± 38.9 Use the fact that x cannot be negative to obtain Height = 0 ⋅ 63 × 38 ⋅ 9 = 24 ⋅ 5 inches Thus Area = h × w = 38 ⋅ 9 × 24 ⋅ 5 = 953 ⋅ 1 square inches Now, we will find the area of John’s television

MATH W/APPLICAT.W/NOTES GDE +ACCESS CODE

11th Edition

ISBN: 9781323751671

Author: Lial

Publisher: PEARSON C

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Question

Chapter 1.7, Problem 8CP

To determine

To calculate: Whether Kathy is right or wrong claiming that John’s 26-inch flat screen has only half of the viewing area that her 46-inch flat screen television has.

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Chapter 1.7, Problem 7CP

Chapter 1.7, Problem 9CP

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MATH W/APPLICAT.W/NOTES GDE +ACCESS CODE

Ch. 1.1 - Name all the types of numbers that apply to the...Ch. 1.1 - Checkpoint 2 Name the property illustrated in each...Ch. 1.1 - Checkpoint 3 Name the property illustrated in each...Ch. 1.1 - Checkpoint 4 Use the distributive property to...Ch. 1.1 - Checkpoint 5 Evaluate the following if and...Ch. 1.1 - Checkpoint 6 Use a calculator to evaluate the...Ch. 1.1 - Prob. 7CP Ch. 1.1 - Checkpoint 8 Draw a number line, and graph the...Ch. 1.1 - Prob. 9CP Ch. 1.1 - Checkpoint 10 Graph all real numbers x such that...

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