Find the maximum value of the function f(x) = -3x^2 + 12x - 5 in the interval [0, 5].
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Question: In a right triangle, if one acute angle measures 35 degrees and the opposite side has a length of 8 units, find the length of the adjacent side using trigonometry ratio formulas.
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What is the vertex of the parabola function y = 2x^2 + 4x + 5?