document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=865416>Question 865416</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve<BR>\n" );
document.write( "a rock is thrown from the top of the building . The distance  in feet, between  the rock and the ground t seconds after the rock is thrown is given by d=-16t^2-34t+15. How long after the rock is thrown does it hit the ground?  THANK YOU!!!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #521696 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=521696\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h=-16t^2-34t+15<BR>\n" );
document.write( "plug in 0 for h and solve for t<BR>\n" );
document.write( "0=-16t^2-34t+15<BR>\n" );
document.write( "t = 3/8 seconds </SPAN>\n" );
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