document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=896542>Question 896542</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a paper plane is thrown from the top of a 147 foot cliff into water, the height of the plane at any given time can be determined by formula h=3t^2 + 147 where h is height of plane at t seconds. <BR>\n" );
document.write( " After how many seconds will the plane be at height of exactly 20.25 feet?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #543607 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=543607\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h=3t^2 + 147 = 20.25<BR>\n" );
document.write( "Solve for t<BR>\n" );
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document.write( "Check your equation, I don't think the height decreases with time.<BR>\n" );
document.write( "That could be the first paper airplane on the moon.<BR>\n" );
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