SOLUTION: I need help with these - PLEASE!!!! okay 1. log4 7 = x ( the 4 should be lower - you know!!!) 2. log0.8 10 = x (same thing) 3. logx 343 = 3 Hope these make

Algebra ->  Algebra  -> Exponential-and-logarithmic-functions -> SOLUTION: I need help with these - PLEASE!!!! okay 1. log4 7 = x ( the 4 should be lower - you know!!!) 2. log0.8 10 = x (same thing) 3. logx 343 = 3 Hope these make      Log On

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Question 93295: I need help with these - PLEASE!!!!
okay
1. log4 7 = x ( the 4 should be lower - you know!!!)
2. log0.8 10 = x (same thing)
3. logx 343 = 3
Hope these make sense
Thanks
Llo
Answer by stanbon(48569) About Me  (Show Source):
You can put this solution on YOUR website!
1. log4 7 = x
x = [log7] / [log4] = 1.403677461...
---------------------
2. log0.8 10 = x
x = [log10] / [log0.8] = 1/(-0.09691013...)= -10.31885116...
-----------------------
3. logx 343 = 3
x^3 = 343
x = 343^(1/3)
x = 7
===============
Cheers,
Stan H.