Question

Y=-16t^2 + 400. Solve for t

Answer 1

Answer:

± 1/4 sqrt((400-y))  =t

Step-by-step explanation:

Y=-16t^2 + 400

Subtract 400 from each side

y - 400 = -16t^2 +400-400

y-400 = -16t^2

Divide by -16t^2

(y-400)/-16 = t^2

(400-y)/16 = t^2

Take the square root of each side

±sqrt((400-y)/16) =sqrt(t^2)

±sqrt((400-y)) / sqrt(16) =t

± 1/4 sqrt((400-y))  =t