FLF 102 Lecture 6: Ch 6 EXAM

13. -11 points SCalcET8 5.4.064 My Notes Ask Your Teacher water flows from the bottom of a storage tank at a rate of r(t) = 400-8t liters per minute, where 0 s t water that flows from the tank during the first 35 minutes. 50, Find the amount of liters Need Help? Read It Talk to a Tutor 14. + -/1 points SCalcET8 5.4.067 My Notes Ask Your Teacher The marginal cost of manufacturing x yards of a certain fabric is C'(x) = 3-0.01x + 0.000009/ (in dollars per yard). Find the increase in cost if the production level is raised from 2000 yards to 4000 yards. Need Help?ReWatch Talk to a Tutor

(5) 3. Chemistry in the real world: an environmental scientist wants to take some standards into the field to calibrate an instrument. Since space is limited, he wants to just bring one bottle with all the 1.0 M standards mixed together. He needs to bring ammonium phosphate, calcium chloride, sodium carbonate, and iron sulfate. Is it possible to have one bottle of these standards, and have all remain in solution? Why or why not?