67. Hours of Daylight In Philadelphia the number of hours of daylight on day t (where t is the number of days after January 1) is modeled by the function L(t) = 12 + 2.83 sin 365 (a) Which days of the year have about 10 h of daylight? (b) How many days of the year have more than 10 h of daylight?

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A: 0≤x≤2π30≤3x≤2πf(x) = cos 3x +3 sin 3xf'(x) = -3 sin 3x + 33 cos 3x f'(x) = 0-3 sin 3x + 33 cos…

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Q: h = 3 sin[30 (t - 4)] +5 O 1.5m O 5m

A: at 5 pm , t = 5

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