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Mathematics 4 Online
OpenStudy (anonymous):

log9(90)=

OpenStudy (anonymous):

its 9^x=90 right? but how do we find x

OpenStudy (anonymous):

is that \[\log_{ 9 } 90 ....??? \]

OpenStudy (anonymous):

yup

OpenStudy (anonymous):

use law of log that is.. \[\log_{a} b = \log_{ } b / \log_{} a \]

OpenStudy (anonymous):

log 90 / log 9

OpenStudy (anonymous):

got it..??

OpenStudy (anonymous):

yes! thank you so much!

OpenStudy (anonymous):

no problem...:)

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