Mathematics

Problem

For a cube of edge length

a\,(\text{cm})

, which one of the following gives the rate of change of its volume

V

(in

\text{cm}^3

) with respect to time

t

seconds? a)

2a^{2}\,\dfrac{da}{dt}

3a^{2}\,\dfrac{da}{dt}

6a^{2}\,\dfrac{da}{dt}

a^{2}\,\dfrac{da}{dt}