document.write( "Question 948679: when a 10-in. shell is shot from a mortar at an angle of 75 degrees, the height, y (in feet), of the shell t sec after being shot from the mortar is given by y=-16t^2 +224t and the horizontal distance of the shell from the mortar, x (in feet), is given by x= 63t.
\n" ); document.write( "How high is the shell after 3 sec ? \n" ); document.write( "

Algebra.Com's Answer #579056 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
y=-16t^2 + 224t
\n" ); document.write( "Sub 3 for t, that's the height.
\n" ); document.write( " \n" ); document.write( "

\n" );