document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1088088>Question 1088088</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Need help with real world math problems?\r<BR>\n" );
document.write( "\n" );
document.write( "For problems 7 – 8, use the Falling Object Model (Object is dropped not thrown) h = -16t2 + s where h = height, t = time (seconds) and s = initial height. In each problem below, remember, h = 0 when the object hits the ground!\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "7. You drop your keys from a window 30 feet above ground to your friend below. It will it take <BR>\n" );
document.write( "______ seconds for the keys to reach the ground when your friend does not catch them,\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "8. An acorn falls 45 feet from the top of an oak tree. How long will it take to reach the ground? _____ </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #702376 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=702376\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7. 0=-16t²+30<BR>\n" );
document.write( "16t²=30<BR>\n" );
document.write( "t²=30/16=15/8<BR>\n" );
document.write( "t=&#8730;(15/8)<BR>\n" );
document.write( "8.0=-16t²+45<BR>\n" );
document.write( "16t²=45<BR>\n" );
document.write( "t²=45/16<BR>\n" );
document.write( "t=3&#8730;5/4<BR>\n" );
document.write( "&#9786;&#9786;&#9786;&#9786; </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );