Question:
The concentration of particulate matter in parts per million
Last updated: 12/10/2023
![The concentration of particulate matter in parts per million](https://media.kunduz.com/media/sug-question-candidate/20231210063154635046-5923485.jpg?h=512)
The concentration of particulate matter in parts per million t hours after a factory ceases operation for the day is given by the following formula C t Find the average concentration for the period from t 0 to t 4 C t 8In t 9 t 9 The average concentration of particulate matter for the time period from t 0 to t 4 is approximately million Do not round until the final answer Then round to four decimal places as needed parts per