document.write( "Question 852102: A fossilized leaf contains 29% of its normal amount of carbon-14. How old is the fossil (to the nearest year). Use the following formula. \n" ); document.write( "
Algebra.Com's Answer #513151 by ewatrrr(24785)\"\" \"About 
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\"Q%28t%29+=+Q%5B0%5De%5E%28-kt+%29\"
\n" ); document.write( "\"Q%28t%29+=+Q%5B0%5De%5E%28-.00012t%29\" |no formula followed: assume k = .00012 for C-14
\n" ); document.write( "\"Q%28t%29%2FQ%5B0%5D+=+.29+=+e%5E%28-.00012t%29\"
\n" ); document.write( " ln(.29)/(-.00012) = t
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