A recording engineer works in a soundproofed room that is 45.0 dB quieter than the outside. If the sound intensity in the room is 1.30e-10 W/(m^2), what is the intensity outside?(adsbygoogle = window.adsbygoogle || []).push({});

I know this intensity formula ...

... I = (P/A)ORI = ( P / [(4)(pi)(r^2)] )

... and for dB ...

... beta = (10 dB)(log (I/Io)

... I can't make sense of the 2 equations to know what to do next ... any ideas?

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# Homework Help: Can you hear me now outside?

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