document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=136231>Question 136231</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The function f(x) = 0.0037x2 – 0.46x +36.63   models the average age at which Kentucky men were first married x years after 1900. In which year was this average age at a minimum?    What was the average age at first marriage for that year?   \r<BR>\n" );
document.write( "\n" );
document.write( "Please help me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #99776 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=99776\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The function f(x) = 0.0037x^2 – 0.46x +36.63   models the average age at which Kentucky men were first married x years after 1900. In which year was this average age at a minimum?    What was the average age at first marriage for that year?   <BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "Minimum occurs when x=-b/2a = -(-0.46)/(2(0.0037)) = 62.16<BR>\n" );
document.write( "f(62.16216...) = 22.333<BR>\n" );
document.write( "Average age was 22 1/3 yrs.<BR>\n" );
document.write( "=============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );