Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. a rocket is launched from atop a 99-foot cliff with an initial velocity of 122 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.0= -16t + 122t  +99;   8.4 s0= -16^2 + 99t + 122;   0.7 s0= -16t^2 + 99t + 122; 8.4 s0= -16t^2 + 122t + 99; 0.7 s

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.