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Help.

 Jan 10, 2018
 #1
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62n  =  800      take the log of both sides

 

log 62n   = log 800      and by a log property, we can write

 

2n * log 6  = log 800

 

n *  ( 2 log 6)  =  log 800           divide both sides by 2 log 6

 

n  =  log 800  /  [ 2 log 6 ]   ≈  1.87

 

 

 

ln 5  +  ln  (2x)  =  5        we can write

 

ln ( 5 * 2x)  =  5

 

ln (10x)  =  5       in exponential form ,we have

 

e^5  = 10x         divide both sides by 10

 

e^5 / 10  =  x  ≈  14.84

 

 

cool cool cool

 Jan 10, 2018

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