document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=473841>Question 473841</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An artifact was found and tested for its carbon-14 content. If 71% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon-14 has a half-life of 5,730 years. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #325008 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=325008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An artifact was found and tested for its carbon-14 content.<BR>\n" );
document.write( " If 71% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? <BR>\n" );
document.write( "Use that carbon-14 has a half-life of 5,730 years.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Assuming the initial amt is 1 we can write the equation:<BR>\n" );
document.write( "2^(-t/5730) = .71<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-t%29%2F5730 ALIGN=MIDDLE  ALT=\"%28-t%29%2F5730\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%28.71%29%2Fln%282%29 ALIGN=MIDDLE  ALT=\"ln%28.71%29%2Fln%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-t%29%2F5730 ALIGN=MIDDLE  ALT=\"%28-t%29%2F5730\"   DISABLED_style= \"max-width:90%; height:auto;\" > = -.4941<BR>\n" );
document.write( "t = -.4941*-5730<BR>\n" );
document.write( "t ~ 2800 yrs </SPAN>\n" );
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