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At St. John's, Newfoundland, the time of sunrise on the nth day of the year...

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Algebra

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At St. John's, Newfoundland, the time of sunrise on the nth day of the year (Jan. 01 isn=0) is given by the equation:T(n) = 1.89 sin 2?(n-80/365) +6.41When will the sun rise on Oct. 20th?a) 5:40 amb) 5:45 amc) 5:28 amd) 5:46 am

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