document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=622431>Question 622431</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ball is dropped from a cliff that is 464 feet high.  The distance S (in feet) that it falls in t seconds is given by the formula S = 464 - 16t^2.  How many seconds (to tenths) will it take for the ball to hit the ground?\r<BR>\n" );
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document.write( "Answers I can choose from:<BR>\n" );
document.write( "21.2 sec<BR>\n" );
document.write( "5.4 sec<BR>\n" );
document.write( "21.5 sec<BR>\n" );
document.write( "13,456 sec </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #391391 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=391391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A ball is dropped from a cliff that is 464 feet high. The distance S (in feet) that it falls in t seconds is given by the formula S = 464 - 16t^2. How many seconds (to tenths) will it take for the ball to hit the ground?<BR>\n" );
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document.write( "Set s to zero and solve for t:<BR>\n" );
document.write( "S = 464 - 16t^2<BR>\n" );
document.write( "0 = 464 - 16t^2<BR>\n" );
document.write( "-464 = -16t^2<BR>\n" );
document.write( "464 = 16t^2<BR>\n" );
document.write( "29 = t^2<BR>\n" );
document.write( "5.4 seconds = t<BR>\n" );
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