Answer:
Explanation:
w(t) = F(t) - D(t) = water into (or out of the pool)
= t^2 + 8t+9 - (t^2 +11t+4)
w(t) = -3t + 5 <===== shows all of the water will leak out after 5/3 hr
the two functions intersect at 5/3 hr this is where water in = water out = dry pool