document.write( "Question 1137871: A rocket is shot into the air and travels h = −4.9t^2 +30t + 45 where h is the height of the object and t is in seconds. What is the time when the object hits the ground to the nearest tenth of a second? \n" ); document.write( "
Algebra.Com's Answer #755777 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
That is not a rocket.
\n" ); document.write( "It's a projectile.
\n" ); document.write( "------------
\n" ); document.write( "Rocket launches, by NASA and others, are sometimes televised.
\n" ); document.write( "They don't just fall back to Earth.
\n" ); document.write( "
\n" );