A person accidentally drops her phone off a side balcony of a building. The height of the phone as it drops can be modeled with the equation h= -16t^2+80 where h is measured in feet and t represents the number of seconds since the phone was dropped. How long does it take for the phone to land? Round to the nearest tenth of a second

It takes 2.24 s for the phone to land.

Step-by-step explanation:

The height of the phone as it drops can be modeled with the equation

h= -16t²+80

where h is measured in feet and t represents the number of seconds since the phone was dropped.

When the phone hits the ground then height of the phone becomes zero.

i.e h=0

-16t²+80=0

⇒16t²=80

⇒ t² =5

∴t=2.24 s  [ since time can not negative]

It takes 2.24 s for the phone to land.

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

cool? what is the actuall ?

step-by-step explanation: