Answer
$3$
Work Step by Step
RECALL:
(i) $\log{M} + \log{N} = \log{MN}.$
(ii) $\log{10^x}=x.$
Use rule (i) above with $M=250$ and $N=4$ to obtain
$\log{(250\cdot4)}
\\=\log{1000}
\\=\log{10^3}.$
Use rule (ii) above to obtain
$3.$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 3 - Section 3.3 - Properties of Logarithms - Exercise Set - Page 475: 42
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