13. The temperature in our school is modeled with this equation: T = 4cos(30(t−8)° +18. T = the temperature in degrees celsius (in terms of the number of hours after midnight, 12 o'clock) t = 1 when it is lam a) How many hours will the temperature be below 14°Celsius?

Elementary Algebra
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Author:Lynn Marecek, MaryAnne Anthony-Smith
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Chapter1: Foundations
Section1.10: Systems Of Measurement
Problem 911E: Some people think that 65°to75° Fahrenheit is the ideal temperature range. (a) What is your ideal...
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13. The temperature in our school is modeled with this equation: T = 4cos (30(t 8)° +18.
T = the temperature in degrees celsius (in terms of the number of hours after midnight, 12 o'clock)
t = 1 when it is lam
a) How many hours will the temperature be below 14°Celsius?
b) What is the temperature (in school) at the end of the school day, 3pm?
Transcribed Image Text:13. The temperature in our school is modeled with this equation: T = 4cos (30(t 8)° +18. T = the temperature in degrees celsius (in terms of the number of hours after midnight, 12 o'clock) t = 1 when it is lam a) How many hours will the temperature be below 14°Celsius? b) What is the temperature (in school) at the end of the school day, 3pm?
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