PLEASE HELP!!
MEDAL!!
The height of Carl, the human cannonball, is given by h(t)=-16t^2+56t+40 where h is in feet and t is in seconds after the launch.

a.) What was his height at the launch?

b.) What is his maximum height?

c.) How long before he lands in the safety net, 8 feet above the ground?

Question

PLEASE HELP!!
MEDAL!!
The height of Carl, the human cannonball, is given by h(t)=-16t^2+56t+40 where h is in feet and t is in seconds after the launch.

a.) What was his height at the launch?

b.) What is his maximum height?

c.) How long before he lands in the safety net, 8 feet above the ground?

nincompoop · Answer

quit leaving your question and start solving!

clamin · Answer

i didnt leave....i been trying to do this question but i dont came up with the answer

nincompoop · Answer

do you know anything about parabolas?

clamin · Answer

yea

nincompoop · Answer

it is what you are being presented in the problem

nincompoop · Answer

a.) What was his height at the launch?
is asking the height's position function at time equals to zero

nincompoop · Answer

now solve that part :) like a piece of cake

clamin · Answer

is there a formula??

nincompoop · Answer

this is the formula h(t)=-16t^2+56t+40