BuyFind

Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
Publisher: Cengage Learning
ISBN: 9781337274203
BuyFind

Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
Publisher: Cengage Learning
ISBN: 9781337274203

Solutions

Chapter 2.3, Problem 67E

(a)

To determine

To calculate: The decibel level at a distance of 10, 20 and 50 feet if the decibel level of a TV set decreases with the distance from the set according to the formula,

D=10log(320×107r2)

(b)

To determine

To calculate: The expression of D in the form of D=A+Blogr if the decibel level of a TV set decreases with the distance from the set according to the formula,

D=10log(320×107r2)

(c)

To determine

To calculate: The distance at which the decibel level drops to 0 decibels when D=9520log(r).

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