What is the maximum value of the function f(x) = x^3 - 6x^2 + 9x + 4 on the interval [0, 5]?
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Math question: The parabola function 𝑦 = 4𝑥^2 represents the path of a projectile launched from the ground. Find the maximum height reached by the projectile.
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Question: How many different ways can you arrange the letters in the word "MATH" when repetition is not allowed?