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Decide whether the statement is true or false. Justify your answer. 1. If y is directly proportional

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Decide whether the statement is true or false. Justify your answer.
1. If y is directly proportional to x and x is directly proportional to z, then y is directly proportional to z.
2. If y is inversely proportional to x and x is inversely proportional to z, then y is inversely proportional to z.
Describe the error.
3. In the equation for the surface area of a sphere, S = 4πr2, the surface area S varies jointly with π and the square of the radius r.
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1 True If y k 1 x and x k 2 z then y k 1 k 2 z k 1 k 2 z 2 False I...View the full answer


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Algebra and Trigonometry

Algebra and Trigonometry

ISBN: 978-1337271172

10th edition

Authors: Ron Larson

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