Records indicate that t hours past midnight, the temperature at the local airport was $f ( t ) = - 0.3 t ^ { 2 } + 8 t + 10$ degrees Fahrenheit. What was the average temperature at the airport between 3:00 A.M. and noon? Round your answer to one decimal place, if necessary.

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The Answer of Records indicate that t hours past midnight, the temperature at the local airport was $f ( t ) = - 0.3 t ^ { 2 } + 8 t + 10$ degrees Fahrenheit. What was the average temperature at the airport between 3:00 A.M. and noon? Round your answer to one decimal place, if necessary.

Records Indicate That T Hours Past Midnight, the Temperature at the Local