document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1071963>Question 1071963</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the half life of carbon14 is 5730 years.\r<BR>\n" );
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document.write( "A.) f(t)=ae^(-kt) solve for k\r<BR>\n" );
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document.write( "b.) if the bone is 65% of the original amount of carbon14. how old is the bone in years?\r<BR>\n" );
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document.write( "c.) If a bone is known to be 1900 years old, what percent of the original Carbon14 is remaining in the bone. Round to the nearest percent. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #686857 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39623)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=686857\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A:<BR>\n" );
document.write( "Find k, given half-life 5730 years.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2=1%2Ae%5E%28k%2A5730%29 ALIGN=MIDDLE  ALT=\"1%2F2=1%2Ae%5E%28k%2A5730%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%281%2F2%29=ln%28e%5E%28k%2A5730%29%29 ALIGN=MIDDLE  ALT=\"ln%281%2F2%29=ln%28e%5E%28k%2A5730%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%281%2F2%29=5730%2Ak ALIGN=MIDDLE  ALT=\"ln%281%2F2%29=5730%2Ak\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=ln%281%2F2%29%2F5730 ALIGN=MIDDLE  ALT=\"k=ln%281%2F2%29%2F5730\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28k=-0.000121%29 ALIGN=MIDDLE  ALT=\"highlight%28k=-0.000121%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "B:<BR>\n" );
document.write( "How old is bone if 65% of original C-14 remains?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.65=1%2Ae%5E%28-0.000121%2At%29 ALIGN=MIDDLE  ALT=\"0.65=1%2Ae%5E%28-0.000121%2At%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%280.65%29=ln%28e%5E%28-0.000121t%29%29 ALIGN=MIDDLE  ALT=\"ln%280.65%29=ln%28e%5E%28-0.000121t%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-0.000121t=ln%280.65%29 ALIGN=MIDDLE  ALT=\"-0.000121t=ln%280.65%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=ln%280.65%29%2F%28-0.000121%29 ALIGN=MIDDLE  ALT=\"t=ln%280.65%29%2F%28-0.000121%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28t=3560%29 ALIGN=MIDDLE  ALT=\"highlight%28t=3560%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, years </SPAN>\n" );
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