Posted by
**Anonymous** on
.

The height above the ground of a rider on a large Ferries wheel can be modelled by h(t)=10sin(2pi/30 t) + 12, where h is the height above the ground, in metres and t is the time in seconds. What is the maximum height reached by the rider and when does it occur?

I know the max height is 22 m, but when does it occur?