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anonymous

  • 4 years ago

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

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  1. anonymous
    • 4 years ago
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    The level of sound V in decibels with an intensity I can be modeled by

  2. anonymous
    • 4 years ago
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    \[V=10 \log (I/10^(-16))\]

  3. anonymous
    • 4 years ago
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    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.

  4. lalaly
    • 4 years ago
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    \[V=10\log \frac{10^{-5}}{10^{-16}}\]

  5. anonymous
    • 4 years ago
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    So far i have V=10 log (10^(-5)/10^(-16))

  6. anonymous
    • 4 years ago
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    is that the answer?

  7. lalaly
    • 4 years ago
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    \[=10\log 10^{11}\]

  8. lalaly
    • 4 years ago
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    \[=10 \times 11 =110\]

  9. anonymous
    • 4 years ago
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    Thanks! :)

  10. lalaly
    • 4 years ago
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    anytime:)

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