Doctors treated a patient at an emergency room from 2 00 P M to 7 00 P M The patient 's blood oxygen level L (in percent) during this time period can be modeled by L 0 270t2 3 59t 83 1, 2 curren t curren 7 where t represents the time of day, with t 2 corresponding to 2 00 P M Use the model to estimate the time (rounded to the nearest hour) when the patient 's blood oxygen level was 93 1706m 84 131 75 wwwwwA A 98 18

Question: Doctors treated a patient at an emergency room from 2:00 P.M. to 7:00 P.M. The patient's blood oxygen level L (in percent) during this time

Doctors treated a patient at an emergency room from 2:00 P.M. to 7:00 P.M. The patient's blood oxygen level L (in percent) during this time period can be modeled by
L = ˆ’0.270t2 + 3.59t + 83.1, 2 ‰¤ t ‰¤ 7
where t represents the time of day, with t = 2 corresponding to 2:00 P.M. Use the model to estimate the time (rounded to the nearest hour) when the patient's blood oxygen level was 93%.

1706m 84 131/75 wwwwwA A 98 18

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