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Mathematics 6 Online
OpenStudy (anonymous):

word problem involving logarithms. I will type it as an equation, please help!

OpenStudy (anonymous):

The level of sound V in decibels with an intensity I can be modeled by

OpenStudy (anonymous):

\[V=10 \log (I/10^(-16))\]

OpenStudy (anonymous):

where I is intensity in watts per centimeter. Loud music can have an intensity of 10^(-5) watts per centimeter. Find the level of sound of loud music.

OpenStudy (lalaly):

\[V=10\log \frac{10^{-5}}{10^{-16}}\]

OpenStudy (anonymous):

So far i have V=10 log (10^(-5)/10^(-16))

OpenStudy (anonymous):

is that the answer?

OpenStudy (lalaly):

\[=10\log 10^{11}\]

OpenStudy (lalaly):

\[=10 \times 11 =110\]

OpenStudy (anonymous):

Thanks! :)

OpenStudy (lalaly):

anytime:)

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