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Mathematics 19 Online
OpenStudy (anonymous):

solve the exponential equation shown below. round your answer to the nearest thousandth

OpenStudy (anonymous):

OpenStudy (solomonzelman):

\(\Large\color{black}{ 12=10^{x+3}-9 }\) can you (for the first step) ad 9 to both sides? what do you get after doing this?

OpenStudy (anonymous):

21

OpenStudy (anonymous):

I got A?

OpenStudy (solomonzelman):

you get: \(\Large\color{black}{ 21=10^{x+3} }\) , yes?

OpenStudy (solomonzelman):

I don't know how you are getting A, maybe you can show what you did?

OpenStudy (anonymous):

C?

OpenStudy (anonymous):

@triciaal

OpenStudy (anonymous):

@DanJS?

OpenStudy (triciaal):

stop guessing or tagging other people when someone is helping you.

OpenStudy (solomonzelman):

ikr? lol;)

OpenStudy (danjs):

use log base 10 of both sides log base 10 of 18 = x +3 so x = log(18) - 3

OpenStudy (danjs):

21 i mean

OpenStudy (danjs):

x = log(21) - 3

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