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OpenStudy (anonymous):
3^x=28
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TheSmartOne (thesmartone):
Do ln on both sides to solve for x...
OpenStudy (danjs):
log base 3
TheSmartOne (thesmartone):
^ Do not give direct answers.
TheSmartOne (thesmartone):
And show your work. How are we supposed to know that is correct without any works?
OpenStudy (anonymous):
use the all mighty change of base formula \[b^x=y\iff x=\frac{\ln(y)}{\ln(b)}\]
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OpenStudy (anonymous):
i have no idea how one "does ln" though
TheSmartOne (thesmartone):
|dw:1418341961319:dw|
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