Question 957350
{{{80.0ft=96t-16t^2}}}
{{{5ft=6t-t^2}}}
{{{t^2-6t+5ft=0}}}
{{{(t-1)=0}}} or {{{(t-5)=0}}}
t=1  or t=5 ANSWER: When h=80.0 feet, t=1 or 5