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11th Edition

Ron Larson + 1 other

Publisher: Cengage Learning

ISBN: 9781337275361

Chapter 6.2, Problem 64E

Textbook Problem

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Noise Level With the installation of noise suppression materials, the noise level in an auditorium was reduced from 93 to 80 decibels. Use the function in Exercise 63 to find the percent decrease in the intensity level of the noise as a result of the installation of these materials.

To determine

**To calculate:** The decrease in percent in the intensity level of the noise as a result of the installation of noise suppression materials.

**Given:**

By the installation of noise suppression materials in the auditorium, the noise level was reduced from 93 to 80 decibels.

**Formula used:**

**Calculation:**

Let us consider the expression,

By putting

By further simplifying,

Calculus of a Single Variable

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One of the vector forms of Green’s Theorem says that
a)
b)
c)
d)

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