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zordoloomBest ResponseYou've already chosen the best response.0
What's the question?
 one year ago

aceaceBest ResponseYou've already chosen the best response.0
\[\log_{4}0.125 \] ... evaluate without a calculator
 one year ago

zordoloomBest ResponseYou've already chosen the best response.0
Oh, that's simple. Do you know how to do base change?
 one year ago

zordoloomBest ResponseYou've already chosen the best response.0
You divide (log(0.125)/(log(4))
 one year ago

zordoloomBest ResponseYou've already chosen the best response.0
There is really no other way to enter it in a calculator
 one year ago

zepdrixBest ResponseYou've already chosen the best response.0
So the log equals some unknown quantity, let's call it x. \[\large \log_{4} 0.125=x\] Do you know how to rewrite this as an exponential?
 one year ago

zordoloomBest ResponseYou've already chosen the best response.0
Oh, sorry, I didn't notice the no calculator allowed. Okay....
 one year ago

aceaceBest ResponseYou've already chosen the best response.0
i got it though.... i'll show you the method and tell me if its right
 one year ago

aceaceBest ResponseYou've already chosen the best response.0
\[\log_{4} 8\] then \[(\log_{4}2 + \log_{4}4)\] then (0.5 +1) then 1.5
 one year ago

zepdrixBest ResponseYou've already chosen the best response.0
Hmm yah I suppose that works! :) That's a little different than how I would have done it. But it get's you familiar with log rules, so that's good :D
 one year ago

geerky42Best ResponseYou've already chosen the best response.1
0.125 = 1/8 and let \(x = \log_4\dfrac{1}{8}\) Convert it to exponent form, then find x
 one year ago

zepdrixBest ResponseYou've already chosen the best response.0
Yah that was the other way c: hehe Either way though!
 one year ago
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