document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=78612>Question 78612</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131444441/algebrahomeworkh>Beginning Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A person drops an object from a plaza that is 729 feet tall.  The height H of the object after T seconds is given by the equation H = -16t squared + 729.  Find how many seconds pass before the object reaches 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 #56341 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=56341\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A person drops an object from a plaza that is 729 feet tall.  The height H of the object after T seconds is given by the equation H = -16t squared + 729.  Find how many seconds pass before the object reaches the ground.<BR>\n" );
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document.write( "When it reaches the ground H=0.<BR>\n" );
document.write( "Solve -16t^2+729=0<BR>\n" );
document.write( "t^2=729/16<BR>\n" );
document.write( "t=sqrt(729)/4 seconds<BR>\n" );
document.write( "t=6.75 seconds<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );