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Mathematics 11 Online
OpenStudy (anonymous):

Logarithm⇓⇓⇓⇓⇓

OpenStudy (anonymous):

\[\frac{ 1 }{ 3 }\log_{7}64+\frac{ 1 }{ 2 }\log_{7}121=\log_{7}x \]

OpenStudy (tkhunny):

\(64 = 4^{3}\) \(121 = 11^{2}\)

OpenStudy (anonymous):

whats the next step?

OpenStudy (anonymous):

where do in plug in that info

OpenStudy (tkhunny):

What did you do with that information? You have logarithm rules. \(a\log(b) = \log\left(b^{a}\right)\)

OpenStudy (anonymous):

I don't get it...

OpenStudy (anonymous):

where do i plug in \[4^3\]

OpenStudy (tkhunny):

What have you tried? Show your work. Just take a shot at it. You can't break it.

OpenStudy (anonymous):

I don't understand what you are saying with \[4^3\] is 3 a and 4 b if you tell me this i can figure it out

OpenStudy (tkhunny):

Why do you wonder about ONLY \(4^{3}\)? I said, \(4^{3} = 64\). This answers all your questions, so far.

OpenStudy (anonymous):

Because \[4^3 and 11^2\] should have the same labeling

OpenStudy (tkhunny):

That doesn't mean anything. \(\dfrac{1}{3}\log(64) = \log\left(64^{(1/3)}\right)\)

OpenStudy (anonymous):

I know what to do if you help me with the labeling

OpenStudy (tkhunny):

It would help if I knew what that meant. \((1/3)\log(64) = (1/3)\log\left(4^{3}\right) = (1/3)(3)\log(4) = log(4)\) \((1/2)\log(121) = (1/3)\log\left(11^{2}\right) = (1/2)(2)\log(11) = log(11)\)

OpenStudy (anonymous):

I needed to know if in \[\log(b ^{a}) \] 4was b an 3 was a and you just proved above that it was thank you

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