Answer
a) 960 feet
b) 953.44 feet
c) 0 feet
Work Step by Step
$h(t)=-16t^2+96t+880$
$-16t^2+96t+880$
$-16(t^2-6t-55)$
$-16(t-11)(t+5)$
$h(t)=-16(t-11)(t+5)$
a)
$t=1$
$h(t)=-16(t-11)(t+5)$
$h(1)=-16(1-11)(1+5)$
$h(1)=-16*-10*6$
$h(1)=160*6$
$h(1)=960$
b)
$t=5.1$
$h(t)=-16(t-11)(t+5)$
$h(5.1)=-16(5.1-11)(5.1+5)$
$h(5.1)=-16*-5.9*10.1$
$h(5.1)=953.44$
c)
$t=11$
$h(t)=-16(t-11)(t+5)$
$h(11)=-16(11-11)(11+5)$
$h(11)=-16*0*16$
$h(11)=0$
