The height of a ball is modeled by hx) = -16x^2+ 80x, where x is the number of seconds after the ball is hit. How long is the ball in the air in other words when will it hit the ground?

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

range is infinite on both x and y axis positive and negative

step-by-step explanation:

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation:

its adding 5.5 each time

step-by-step explanation: