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dpazmembreno
05.10.2019 •
Mathematics
Solve the equation: log3 ( x^9) =12
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Ответ:
To solve this, raise 3 to the 12th power, and solve for x.
log3(x^9)=12
Take the number in front of the log, 3
Raise it to the number on the other side of the equation, 12
Set that equal to the expression in parentheses
So, we have 3^12=x^9
Solve it like a normal equation by simplifying
3^12= 531441, so
531441=x^9
to get x by itself, take the 9th root of both sides. If you're using a TI-84, you can do this by going to MATH>5 and then typing in the root
x = 4.326748711
Ответ:
A.
Step-by-step explanation:
For future: To solve (which you dont need rn, use the Percentage increase formula.)
22,000 is the inital number so start off with that...
Then it increases by 25%
So it would be 1.25
Thus the answer is A.