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Mathematics 9 Online
nettym:

math help? ss below

nettym:

1 attachment
Katrin369:

ask @dude i think he will help. or @jhonyy9

nettym:

okay ty

Katrin369:

I think @jhonyy9 is offline

nettym:

Ohh lol ok tyy

nettym:

@dude can you help?

Katrin369:

or darknight

supie:

@darkknight

darkknight:

this is written as log(y) = 17 assumed to be written in base 10

darkknight:

\[\log_{10}y=17 \]

darkknight:

but you can do \[10^{\log_{10}y }=10^{17}\] This is called exponentiating we took 10 to the power of (left side and right side) to cancel the log we will get \[10^{\log_{10}y }=y\] and 10^17 equals that as well

jhonyy9:

use formula of logarithm log_a b = x => a^x = b for example log_10 100 = 2 => 10^2 = 100

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