document.write( "Question 607344: write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of In(x) in your answer.)\r
\n" ); document.write( "\n" ); document.write( "log8.9(124)\r
\n" ); document.write( "\n" ); document.write( "give a calculator approximation (correct to four decimal places)
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Algebra.Com's Answer #382744 by jsmallt9(3758)\"\" \"About 
You can put this solution on YOUR website!
\"log%288.9%2C+%28124%29%29\"
\n" ); document.write( "Just use the change of base formula, \"log%28a%2C+%28p%29%29+=+log%28b%2C+%28p%29%29%2Flog%28b%2C+%28a%29%29\", to convert this base 8.9 log into an expression of ln's:
\n" ); document.write( "\"log%288.9%2C+%28124%29%29+=+ln%28124%29%2Fln%288.9%29\"
\n" ); document.write( "Now get out your calculator:
\n" ); document.write( "\"log%288.9%2C+%28124%29%29+=+ln%28124%29%2Fln%288.9%29+=+4.82028157%2F2.18605128+=+2.20501761\"
\n" ); document.write( "Rounded to 4 decimal places we get:
\n" ); document.write( "2.2050
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