#### Answer

$11$

#### Work Step by Step

$x=8^{\log _{8}11}\Rightarrow \log _{8}x=\log _{8}8^{\log _{8}11}\Rightarrow \log _{8}x=\log _{8}11\Rightarrow x=11$

Published by
Pearson

ISBN 10:
013421742X

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

$11$

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