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RUDIKE [14]
3 years ago
14

The Air Quality Index, or AQI, measures how polluted the air is in your city and assigns a number based on the quality of the ai

r. Over 100 is "Unhealthy". The following quadratic regression equation, models the AQI over time, where n represents the number of days the AQI exceeded 100, and t represents the number of years since 1990.
Mathematics
1 answer:
tatuchka [14]3 years ago
3 0

Answer:

it is actually c.135 days on edge just took the test

Step-by-step explanation:

took the test

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