a rocket is launched atop a 87 foot cliff with an initial velocity of 157 ft/s. The height of te rocket above the ground at time T is given by h= -16t² + 157t + 87. When will the rocket hit the ground after it is launched? Round to the nearest tenth of a second.

28

step-by-step explanation:

because that's the answer

step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh