What is the value of angle A in a triangle with sides of length 5, 8, and 10?
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Math question: Find the limit as x approaches 1 of (2x^2 + 3x - 5)/(x - 1).
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What is the average number of books read by 30 students in a month, if the data shows the following: 10 students read 2 books, 15 students read 4 books, and 5 students read 6 books?