Question

The approximate change in the volume of a cube of side x metres caused by increasing the side by 3% is

A. 0.06 x³ m³    B. 0.6 x³ m³       C. 0.09 x³ m³     D. 0.9 x³ m³

Answer 1

The volume of a cube (V) of side x is given by V = x³.

Hence, the approximate change in the volume of the cube is 0.09x³ m³.
The correct answer is C.