SOLUTION: how to find log of 1.8*10^-7

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Question 571608: how to find log of 1.8*10^-7
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!

Use the rule:

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Use the rule:

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check answer:
On my Casio calculator,

I assume error is due to rounding off

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