A bird drops a stick to the ground from a height of 80ft. The function h=-16t^2+80 gives the sticks approximate height (h) above the ground, in feet, after t seconds. Graph the function. At about what time does the stick hit the ground?

I would like step by step and a graph but if cant do a graph please just give the points
thanks.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

The total number of dental clinics total for the last 12 months was recorded

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv