Question 8 of 9 - /15 8 : Current Attempt in Progress Filters at a water treatment plant become less effective over time. The rate at which pollution passes through the filters into a nearby lake is given in the following table. Day 0 Q 16 24 32 40 Rate 8 10 13 18 35 (kg/day) (a) Estimate the total quantity of pollution entering the lake during the 40-day period. Round your answer to the nearest integer. The total quantity of pollution that enters the lake is i kg . (b) Your answer to part (a) is only an estimate. Give bounds (lower and upper estimates) between which the true quantity of pollution must lie. (Assume the rate of pollution is continually increasing.) The underestimate is i kg . The overestimate is i kg. eTextbook and Media 9 Search PrtSon End DII O- Home PgUp F8 F9 F10 F11 X F5 F7 F1 F2 F3 F4 F6 a 9 O 2 3 4 5 6 O P W E R T Y U F K S D G H Z X C V B N M