is continuous on [0, 3] and differentiable on (0, 3), so the mean value theorem applies here. It says that there is some
in the open interval (0, 3) such that

We have

so

Answer: C. 2
Step-by-step explanation:
Answer:
s inversely proportional 1/t
s=0.3, t=8
s=k/t
0.3=k/8
k=0.3×8
k=2.4
find s when t=0.4
s=2.4/0.4
s=6.0 or 6