document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=146307>Question 146307</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An astronaut on the moon tosses a ball upwards; when will the ball initially be 35 feet above the lunar surface if the ball's height (feet) follows: h(t)=-2.6t^2+32.1t_5.5, and t is in seconds from release?<BR>\n" );
document.write( "a)1 second<BR>\n" );
document.write( "b)2 seconds<BR>\n" );
document.write( "c)1/2 seconds<BR>\n" );
document.write( "d)13.2 seconds\r<BR>\n" );
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document.write( "I came up with 1 second and 11.. a little confused. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #106829 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=106829\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An astronaut on the moon tosses a ball upwards; when will the ball initially be 35 feet above the lunar surface if the ball's height (feet) follows: <BR>\n" );
document.write( "h(t)=-2.6t^2+32.1t_5.5, and t is in seconds from release?<BR>\n" );
document.write( "a)1 second<BR>\n" );
document.write( "b)2 seconds<BR>\n" );
document.write( "c)1/2 seconds<BR>\n" );
document.write( "d)13.2 seconds<BR>\n" );
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document.write( "-2.6t^2 + 32.1t + 5.5 = 35<BR>\n" );
document.write( "-2.6t^2 + 32.1t -29.5 = 0<BR>\n" );
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document.write( "The 1st time the ball reaches 35 ft. (on the way up)  is 1 second.<BR>\n" );
document.write( "The 2nd time it reaches 35 ft. (on the way down) is 11.35 seconds<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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