document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=562732>Question 562732</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLEASE help me with this; I've been doing homework for hours and I don't know how to do this problem.\r<BR>\n" );
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document.write( "\"After t seconds, the height (t) of a bottle rocket launched from the ground into the air is given by the function h(t) = -16tē + 80t.  Find how long it takes the rocket to teach a height of 96 feet.\"\r<BR>\n" );
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document.write( "THANK YOU! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #364659 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=364659\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h(t) = -16tē + 80t.\r<BR>\n" );
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document.write( "h(t)=96 feet<BR>\n" );
document.write( "find t\r<BR>\n" );
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document.write( "96 = -16t^2+80t\r<BR>\n" );
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document.write( "16t^2-80t+96=0\r<BR>\n" );
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document.write( "16t^2-32t-48t+96=0<BR>\n" );
document.write( "16t(t-2)-48(t-2)=0<BR>\n" );
document.write( "16t-48)(t-2)=0<BR>\n" );
document.write( "16(t-3)(t-2)=0<BR>\n" );
document.write( "t=3 & 2\r<BR>\n" );
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document.write( "It will take 2 seconds\r<BR>\n" );
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