document.write( "Question 309751: use long8 5=0.7740 and log8 4=0.6667 to evaluate log8 20?? \n" ); document.write( "

Algebra.Com's Answer #221545 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"log%288%2C5%29+=+0.7740\"$
\n" ); document.write( " $\"log%288%2C4%29+=+0.6667\"$
\n" ); document.write( "--------------------------
\n" ); document.write( "evaluate $\"log%288%2C20%29\"$
\n" ); document.write( "20 = 4*5 --> log(20) = log(4) + log(5) with any base
\n" ); document.write( " $\"log%288%2C20%29+=+0.774+%2B+0.6667\"$
\n" ); document.write( "= 1.4407
\n" ); document.write( " \n" ); document.write( "

\n" );