Answer to a math question Sabendo+que+o+tri%C3%A2ngulo+ABC+%C3%A9+ret%C3%A2ngulo+e+que+um+de+seus+%C3%A2ngulos+mede+30+quanto+mede+o+terceiro+ tri%C3%A2ngulo
How many ways can you arrange 5 books on a shelf if one must be in the middle?
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Question: What is the maximum value of the function f(x) = 4x^3 - 6x^2 + 2x + 1 on the interval [-2, 3]?
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Question: What is the product when a mixed number of 3 and 1/4 is multiplied by the prime factorization of 72 plus the sum of all real numbers from -5 to 5?