PLEASE HELP!!!!!! MEDAL TO RIGHT ANSWER! Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.
A rocket is launched from atop a 76-foot cliff with an initial velocity of 135 ft/s.
A.) Substitute the values into the vertical motion formula h=-16t^2+vt+c. Let h=0
B.) Use the quadratic formula find out how long the rocket will take to hit the ground after it is launched. Round to the nearest tenth of a second.
1.)0= -16t^2 + 135t + 76; 0.5 s
2.)0= -16t^2 + 135t + 76; 9 s

Question

PLEASE HELP!!!!!! MEDAL TO RIGHT ANSWER! Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.
A rocket is launched from atop a 76-foot cliff with an initial velocity of 135 ft/s. 
A.) Substitute the values into the vertical motion formula h=-16t^2+vt+c. Let h=0
B.) Use the quadratic formula find out how long the rocket will take to hit the ground after it is launched. Round to the nearest tenth of a second.
1.)0= -16t^2 + 135t + 76; 0.5 s
2.)0= -16t^2 + 135t + 76; 9 s

anonymous · Answer

similar http://www.algebra.com/algebra/homework/quadratic/Quadratic_Equations.faq.question.289064.html

anonymous · Answer

okay i can do this quickly 
h=0
v=135 
and c=76

anonymous · Answer

and b just wants you to slove for t

anonymous · Answer

I think its answer #1 i just want someone to check it

anonymous · Answer

okay 1sec

anonymous · Answer

actually its 2

anonymous · Answer

you should get two answers -0.5 and 8.9 but time cant be negative so it must be 8.9

anonymous · Answer

true thanks!

anonymous · Answer

no prob bye!