document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=91096>Question 91096</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A toy rocket is shot vertically upward from the ground. Its distance in feet from the ground in t seconds is given by H(t)=-16t^2(squared) + 197t. At what time or times will the ball be 124 feet from the ground?\r<BR>\n" );
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document.write( "Can you please set up for me? Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #66120 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=66120\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A toy rocket is shot vertically upward from the ground. Its distance in feet from the ground in t seconds is given by H(t)=-16t^2(squared) + 197t. At what time or times will the ball be 124 feet from the ground?<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "-16t^2+197t = 124<BR>\n" );
document.write( "16t&2-197t+124 = 0 <BR>\n" );
document.write( "t = [197+-sqrt(197^2-4*16*124)]/32<BR>\n" );
document.write( "t = [197+-175.707]/32<BR>\n" );
document.write( "t = 0.665 seconds and again at 11.65 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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