document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1029055>Question 1029055</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%28t%29=-16t%5E2%2B64t%2B90 ALIGN=MIDDLE  ALT=\"h%28t%29=-16t%5E2%2B64t%2B90\"   DISABLED_style= \"max-width:90%; height:auto;\" > please help me find<BR>\n" );
document.write( "The max height Please\r<BR>\n" );
document.write( "\n" );
document.write( "The total time the ball is in the air \r<BR>\n" );
document.write( "\n" );
document.write( "The vertex would be nice to </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #644104 by </B><A HREF=/tutors/aboutme.mpl?userid=Natolino1983><B>Natolino1983(23)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Natolino1983><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=644104\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is quite simple.\r<BR>\n" );
document.write( "\n" );
document.write( "H(t) = -16t^2 + 64t + 90 =-16(t^2-4t-45/8)= -16((t-2)^2 -77/8) = 154 -16(t-2)^2.\r<BR>\n" );
document.write( "\n" );
document.write( "So Max Height = 154 (when t=2).\r<BR>\n" );
document.write( "\n" );
document.write( "Total Time in air, can be obtain with H(t) =0, (t-2)^2 =154/16, with t>2, t=5,1 (s).\r<BR>\n" );
document.write( "\n" );
document.write( "Vertex is (154,2) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );