document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=141175>Question 141175</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 	If a skydiver jumps from an airplane at a height of 8256 feet, then for the first 5 seconds, her height above the earth is approximated by the formula: h=-t^2+8256 .  How many seconds does it take her to reach 8000 feet? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #102821 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=102821\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a skydiver jumps from an airplane at a height of 8256 feet, then for the first 5 seconds, her height above the earth is approximated by the formula: h=-t^2+8256 . How many seconds does it take her to reach 8000 feet?<BR>\n" );
document.write( "0 solutions<BR>\n" );
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document.write( "h(t) = -t^2+8256<BR>\n" );
document.write( "-t^2 + 8256 = 8000<BR>\n" );
document.write( "-t^2 = -256<BR>\n" );
document.write( "t = sqrt(256) = 16 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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