The population P of a culture of Pseudomonas aeruginosa bacteria is given by P=-9581 +7 +70,000t+40,000, where t is the time in hours since the culture was started. Determine the time(s) at which the population was 700,000. Round to the nearest hour. Part 1 of 2 The culture reached a population of 700,000 Part: 1 / 2 Part 2 of 2 There were 700,000 organisms approximately started. hr and 0 hr after the culture was