-16t^2+400=0
16t^2=400
take square root on both sides.
4t=20
t=20/4
t=5
Answer:
A) y=(x-8)^2-5
B)y=10(x+6)^2
C) y=-0.6(x+7)^2-2
Step-by-step explanation:
C. The bottom answer.