A record club has found that the marginal profit, P'(x), in cents, is given by P'(x) = - 0.0008x +0.33x2+ 34.1x for x s 300, where x is the number of members currently enrolled in the club. Approximate the 20,000- Pepper +0-2342 total profit when 180 members are enrolled by computing the sum _ P' (x ) Ax with Ax =30 16,000 Q 1=1 12,000 Marginal profit (in cents) 8,000 4,000 160 200 300 Number of members The total profit when 180 members are enrolled is approximately s (Round to the nearest cent as needed.)