anonymous
  • anonymous
Helppp Pleeaassee!!! Estimate the value of the logarithm to the nearest tenth log9 61 a. 6.3 b. 0.5 c. -1.9 d. 1.9
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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Nnesha
  • Nnesha
\[\huge\rm log_a b = \frac{ \log b }{ \log a }\] change of base formula apply that
anonymous
  • anonymous
ok.. how?
Nnesha
  • Nnesha
like this \[\huge\rm log_a b = \frac{ \log b }{ \log a }\] |dw:1432867315093:dw|

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anonymous
  • anonymous
umm this just looks like the same thing on all 3 sides? im not understanding :/
Nnesha
  • Nnesha
on all 3 sides ? what do you mean what is b in ur question and what is a(base)
anonymous
  • anonymous
um idk what any of that is? all i was given was log9 61?
anonymous
  • anonymous
how do i know what the base is?
Nnesha
  • Nnesha
that's very good question ......
Nnesha
  • Nnesha
|dw:1432867635536:dw| \[\log_2 = \] ^ base 2
Nnesha
  • Nnesha
\[\huge\rm log_8 = base~8\]
Nnesha
  • Nnesha
so what's the base of \[\huge\rm log_9 61\]?
anonymous
  • anonymous
ugh im sorry i'll just close this question because none of this is making sense to me
Nnesha
  • Nnesha
if you don't know what the base of given log you can't understand other log question good luck!
Nnesha
  • Nnesha
in other words that's the first step of this unit :-)
Nnesha
  • Nnesha
|dw:1432868106697:dw| example i hope it make sense

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