document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=741339>Question 741339</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A launched rocket has an altitude, in meters, given by the polynomial h+vt-4.9t^2,where h is the height , in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds for which the rocket is airborne. If a rocket is launched from the top of a tower 50 meters high with an initial upward speed of 30 meters per second, what will its height be after 2 seconds?<BR>\n" );
document.write( "its height will be ___ meters<BR>\n" );
document.write( "(round to the nearest tenth) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #451971 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=451971\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> H=h+vt-4.9t^2<BR>\n" );
document.write( "plug in 50 for small h<BR>\n" );
document.write( "2 for t<BR>\n" );
document.write( "30 for v<BR>\n" );
document.write( "H=h+vt-4.9t^2<BR>\n" );
document.write( "H=50+30*2-4.9*(2^2)<BR>\n" );
document.write( "H=50+60-4.9*4<BR>\n" );
document.write( "H=110-19.6<BR>\n" );
document.write( "H=90.4 meters\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );