Let $C(f(t))$ be a composite function, where $V=f(t)$ is the volume of water, in cubic feet, emitted by a sprinkler system after $t$ minutes, and $C(V)$ is the cost, in dollars, of $V$ cubic feet of water. What are the units of $C(f(t))$ ?
A) cubic feet
B) minutes
C) dollars

Question

Quizplus · Accepted Answer

The units of $C(f(t))$ are the units of the outer function $C(V)$, which is in dollars, since $C(f(t))$ represents the cost of the volume of water emitted.

Let C(f(t))C(f(t))C(f(t)) Be a Composite Function, Where V=f(t)V=f(t)V=f(t) Is the Volume of Water, in Cubic Feet, Emitted by Volume

Let $C(f(t))$ Be a Composite Function, Where $V=f(t)$ Is the Volume of Water, in Cubic Feet, Emitted by Volume