document.write( "Question 571608: how to find log of 1.8*10^-7 \n" ); document.write( "

Algebra.Com's Answer #368131 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+log%28+1.8%2A10%5E%28-7%29+%29+\"$
\n" ); document.write( "Use the rule:
\n" ); document.write( " $\"+log%28+a%2Ab+%29+=+log%28a%29+%2B+log%28b%29+\"$
\n" ); document.write( "--------------------------
\n" ); document.write( " $\"+log%28+1.8+%29+%2B+log%28+10%5E%28-7%29+%29+\"$
\n" ); document.write( "Use the rule:
\n" ); document.write( " $\"+log%28+a%5Eb+%29+=+b%2Alog%28a%29+\"$
\n" ); document.write( "---------------------
\n" ); document.write( " $\"+log%28+1.8+%29+%2B+%28-7%29%2Alog%2810%29+\"$
\n" ); document.write( " $\"+.25527+-+7%2A1+\"$
\n" ); document.write( " $\"+-6.7447+\"$
\n" ); document.write( "check answer:
\n" ); document.write( "On my Casio calculator,
\n" ); document.write( " $\"+10%5E%28-6.7447%29+=+1.800114%2A10%5E%28-7%29+\"$
\n" ); document.write( "I assume error is due to rounding off \n" ); document.write( "

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