Question 1138933
Hbracket(t)=-16sup(t,2)+88t+168. 

?



Maybe more like  H(t)=-16t^2+88t+168
?


{{{-32t+88=0}}}

{{{88=32t}}}

{{{22=8t}}}

{{{11=4t}}}

{{{t=11/4}}}

{{{t=2&3/4}}}{{{seconds}}}