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In a certain city the temperature (in degrees Fahrenheit) t hours after 9am was approximated by the function: T(t)= 70 + 19sin((pi*t)/12). What is the temperature at 3 pm?

  • calculus - ,

    at 3pm, t=6, so

    T(6)= 70 + 19sin((pi*6)/12) = 70+19 = 89

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