document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1103121>Question 1103121</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the function V = 16t^2 + 15t, where t is the amount of time a basketball player can remain airborne when jumping and V the vertical leap in inches . A basketball player has a vertical leap of 39 inches. What is his hang time? Round your answer to the nearest 10th of a second.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #717859 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=717859\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the function V = -16t^2 + 15t, where t is the amount of time a basketball player can remain airborne when jumping and V the vertical leap in inches . A basketball player has a vertical leap of 39 inches. What is his hang time? <BR>\n" );
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document.write( "Notice the minus sign added.<BR>\n" );
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document.write( "Find the time at the vertex:<BR>\n" );
document.write( "It's at t = -b/2a = 15/32 seconds<BR>\n" );
document.write( "that's 15/32 rising and 15/32 falling<BR>\n" );
document.write( "= 15/16 seconds<BR>\n" );
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document.write( "Leap height is 42.1875 inches, not 39 </SPAN>\n" );
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