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sritama
Group Title
if log of 2 to the base 10=.301
log of 25 to the base 8=?
show how to solve
 3 years ago
 3 years ago
sritama Group Title
if log of 2 to the base 10=.301 log of 25 to the base 8=? show how to solve
 3 years ago
 3 years ago

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dumbcow Group TitleBest ResponseYou've already chosen the best response.0
\[\log_{10} 2 = .301 \] \[\log_{8} 25 = \frac{\log 25}{\log 8} = \frac{1.398}{.903} = 1.548 \] Basically use change of base formula \[\log_{b} x = \frac{\log x}{\log b} \]
 3 years ago

Arnab09 Group TitleBest ResponseYou've already chosen the best response.2
hah! you can't do that?
 2 years ago

Arnab09 Group TitleBest ResponseYou've already chosen the best response.2
\[\log_{8}25=2\log_{10}5/3\log_{10}2=2(1\log_{10}2)/3\log_{10}2=2*(1.301)/(3*.301)=1.548 \]
 2 years ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.0
very nice :)
 2 years ago
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