Ineed to know how to best solve this equation. i need to find what b and c equal. i already know y = 1.686 and t = 4. this is what i have done so far. .

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x - 2? a = 1, b = 3, c = 2 a=, b = -3,c=-2 a = 1, b = 3, c= 2 a = 1.0= -3, c = 2

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)