#### Answer

$\log_{10} .0001=-4$

#### Work Step by Step

$10^{-4}=.0001$
This means that $10$ must be raised to the power of -4 in order to get $.0001$.
$\log_{10} .0001=-4$ means the same.

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$\log_{10} .0001=-4$

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