Question 759731
{{{ h = -16t^2 + 150t + 25 }}}
{{{ t = 3 }}}
{{{ h = -16*3^2 + 150*3 + 25 }}}
{{{ h = -16*9 + 450 + 25 }}}
{{{ h = -144 + 475 }}}
{{{ h = 331 }}}
The rocket is 331 ft above ground 3 sec after launch