# calculus

posted by
**john**
.

At a certain instant of time, the sides of the cube are 3 in. long and increasing at the rate of 0.2 in./sec. How fast is the volume of the cube changing at that instant of time?

posted by
**john**
.

At a certain instant of time, the sides of the cube are 3 in. long and increasing at the rate of 0.2 in./sec. How fast is the volume of the cube changing at that instant of time?