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October 21, 2014

October 21, 2014

Posted by **Hannah** on Tuesday, July 28, 2009 at 10:17pm.

log10 (9/300)

Please explain!!

- Math -
**DrBob222**, Tuesday, July 28, 2009 at 10:44pmSubtracting logs is the equivalent of dividing.

log 9 - log 300 = ??

- Math -
**Dr Russ**, Wednesday, July 29, 2009 at 4:51amI think they want you to show the two values as 9=3^2 and 300=3x10^2

so you have

log 3^2 - log(3x10^2)

=2 log 3 - (log3 + 2log10)

can you take it from here?

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