Astone is projected vertically so that its position above ground level after t seconds is given by
h(t) = 100t – 5t2 meters, t > 0.
which one of the following is the maximum height the stone can reach?

Step-by-step explanation:

The height of the vertically projected stone is represented by the function,

h(t) = 100t – 5t^2

The given function is a quadratic equation. If values of height attained attained by the stone is plotted against time, the shape of the graph will be a parabola whose vertex would correspond to the maximum height obtained by the stone.

Vertex of the parabola = -b/2a

From the given equation,

a = - 5

b = 100

Vertex = - 100/ - 2× 5 = 100/10

Vertex = 10

Therefore, the maximum height the stone can reach is 10 meters

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

i can answer this question sweetie!

step-by-step explanation: