1. OXYGEN CONTENT OF A PONDThe oxygen contenttdays after organic waste has been dumped into a pond is given by
2. () = 100 (2+ 10 + 100) 2+20+100
3. Percent of its normal level.
4. Show thatf(0) = 100 andf(10) = 75.
5. Us the Intermediate Value Theorem to conclude that the oxygen of the pond
6. must have been at a level of 80% at some time.
7. At what time(s) is the oxygen content at the 80% level?
8. HINT:Use the quadratic formula.