Homework Clinic
Mathematics Clinic => Grade 11 and 12 Mathematics => Topic started by: Tirant22 on Feb 28, 2021
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Solve the problem.
The average daily temperature T of a city in the United States is approximated by
T = 55 - 23 cos (t - 30)
where t is in days, 1 ≤ t ≤ 365, and t = 1 corresponds to January 1. For what range of values of t is the average daily temperature above 70°F? Use a calculator and round answers to the nearest whole number.
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163 ≤ t ≤ 262
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Thank you