Answer
$150$
Work Step by Step
$L(I)=10\log{\frac{I}{I_0}}$ where $I_0=10^{-12}$ Hence here $L(I)=10\log{\frac{10^3}{10^{-12}}}=10\log10^{15}=10\cdot15=150$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 7 Exponential and Logarithmic Functions - 7.5 Apply Properties of Logarithms - 7.5 Exercises - Skill Practice - Page 511: 63
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