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I need help with these two problems please, and please answer all parts of the questions and make it it legible. You can see from

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I need help with these two problems please, and please answer all parts of the questions and make it it legible. You can see from the pics how many parts of the problems their are.

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Find three real numbers x, y, and 2 whose sum is 21 and the sum of whose squares is as small as possible. The three numbers are D. (Simplify your answers. Use a comma to separate answers as needed.) Find the dimensions of the closed right circular cylindrical can of smallest surface area whose volume is 2501: cm3. The closed right circular cylindrical can of smallest surface area whose volume is 2501: cm3 has a radius of D cm and a height of D cm. (Simplify your answer.)

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