document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=901224>Question 901224</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown upward with an initial velocity of 24 ft per second. The formula h(t)= 64t-16t^2 gives the height of the ball after t seconds.During what time span with the ball in flight. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #546587 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=546587\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown upward with an initial velocity of 24 ft per second. The formula h(t)= 64t-16t^2 gives the height of the ball after t seconds.During what time span with the ball in flight.<BR>\n" );
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document.write( "h(t)= 64t-16t^2<BR>\n" );
document.write( "-16t^2+64t=0<BR>\n" );
document.write( "-16t(t-4)=0<BR>\n" );
document.write( "t=0<BR>\n" );
document.write( "or<BR>\n" );
document.write( "t=4<BR>\n" );
document.write( "time span with the ball in flight=0-4 sec </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );