Question

problem 2
a cube has an edge length of 21 cm. use an exponent to express its volume.

Explanation:

Step1: Recall the formula for the volume of a cube

The volume \( V \) of a cube with edge length \( s \) is given by the formula \( V = s^3 \), where \( s \) is the length of an edge.

Step2: Substitute the given edge length into the formula

Here, the edge length \( s = 21 \) cm. Substituting this into the formula for the volume of a cube, we get \( V = 21^3 \) cubic centimeters.

Answer:

The volume of the cube is expressed as \( 21^3 \) cubic centimeters.