The function t=sqrt d/16models the time (t) in seconds that an object has been falling after the object has fallen d feet. When will the time be more than 1 minute?

A d ≥ 16 ft
B d ≥ 225 ft
C d ≥ 3,600 ft
D d ≥ 57,600 ft

Question

The function t=sqrt d/16models the time (t) in seconds that an object has been falling after the object has fallen d feet. When will the time be more than 1 minute?

A d ≥ 16 ft
B d ≥ 225 ft
C d ≥ 3,600 ft
D d ≥ 57,600 ft

anonymous · Answer

I am 50 years old and have no idea

anonymous · Answer

also  When will the dependent variable in the equation y= sqrt x+4-3 equal or exceed 4?

A x ≥ –0.17
B x ≥ 45
C x ≥ 48
D x ≥ 53

anonymous · Answer

The first one is B 225ft and I think the last one is B 45