L₁ = 10logio, where L,is the magnitude of sound intensity (decibels), / is the current sound intensity, and is the reference sound intensity. Io corresponds with the faintest sound that can be heard by the human ear, lo= 10-16 watts per square centimeter. Due to the installation of a new speaker system in a high school gymnasium, the noise level (magnitude of the sound intensity) was increased from 45 to 48 decibels. Find the percent increase in the sound intensity as a result of the installation of this new speaker. O 10% O 99.5% 0.9% 6.7%

L₁ = 10logio, where L,is the magnitude of sound intensity (decibels), / is the current sound intensity, and is the reference sound intensity. Io corresponds with the faintest sound that can be heard by the human ear, lo= 10-16 watts per square centimeter. Due to the installation of a new speaker system in a high school gymnasium, the noise level (magnitude of the sound intensity) was increased from 45 to 48 decibels. Find the percent increase in the sound intensity as a result of the installation of this new speaker. O 10% O 99.5% 0.9% 6.7%

Algebra for College Students

10th Edition

ISBN:9781285195780

Author:Jerome E. Kaufmann, Karen L. Schwitters

Publisher:Jerome E. Kaufmann, Karen L. Schwitters

Chapter10: Exponential And Logarithmic Functions

Section10.CR: Review Problem Set

Problem 62CR

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