document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=979611>Question 979611</A>: <I><SPAN STYLE=\"word-break: break-all;\"> \"An object is launched vertically in the air from a 10-meter tall platform. The height (in meters) of the object t seconds after it was launched is modeled by the function: h(t)=-16t^2+36t+10. How long will it take for the object to reach its maximum height? what is the maximum height?\r<BR>\n" );
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document.write( "a) the t-coordinate of the vertex is given by t=-b/2a= _______<BR>\n" );
document.write( "b). the object reaches it maximum height ___ seconds after launch.\r<BR>\n" );
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document.write( "a). h(1.125)=_____<BR>\n" );
document.write( "b) the maximum height of the object is ____ meters. \r<BR>\n" );
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document.write( "any help with this would be appreciated thank you so much  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #600914 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=600914\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An object is launched vertically in the air from a 10-meter tall platform. The height (in meters) of the object t seconds after it was launched is modeled by the function: h(t)=-16t^2+36t+10. How long will it take for the object to reach its maximum height? what is the maximum height?<BR>\n" );
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document.write( "h(t)=-16t^2+36t+10 is used on Earth for the height in feet (not meters).<BR>\n" );
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document.write( "a) the t-coordinate of the vertex is given by t=-b/2a= _<BR>\n" );
document.write( "It's -b/2a.  Sub for b and a from the quadratic.<BR>\n" );
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document.write( "b). the object reaches it maximum height ___ seconds after launch.<BR>\n" );
document.write( "At the vertex, at t = -b/2a.<BR>\n" );
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document.write( "a). h(1.125)=_____<BR>\n" );
document.write( "Sub 1.125 for t in h(t)=-16t^2+36t+10<BR>\n" );
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document.write( "b) the maximum height of the object is ____ meters.<BR>\n" );
document.write( "It's not clear if it's meters or feet, but look at b above (the 1st b).<BR>\n" );
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