bridgetbelk bridgetbelk 14-03-2024 Mathematics contestada On a good day, the nitrogen level in the air is approximately f(x)=0.17+177x2.5x2+250 ppm (parts per million), where x is the number of hours after 8:00 AM and 0≤x≤15 . How many hours after 8:00 AM will the nitrogen level reach its maximum?