Question

Alain throws a stone off a bridge into a river below.

The stone's height (in meters above the water), xxx seconds after Alain threw it, is modeled by h(x)=-5x^2+10x+15
What is the height of the stone at the time it is thrown?

Answer 1

15 meters

Explanation:

I think the other guy answered the question similar to this one where it shows how many second but guys its height in meters anyway bye have a great day!!! :D

Answer 2

3 seconds.

Explanation: