Andrea claims that any two cross sections of a cylinder that lie on parallel planes are congruent.

Alake near the arctic circle is covered by a sheet of ice during the cold winter months. when spring arrives, the ice starts to melt. s(t) models the ice sheet's thickness (in meters) as a function of time tt (in weeks). s(t)=-0.25t+4

What is the frequency of the sinusoidal graph?

Which function has the domain x> -11