A fireplace arch is to be constructed in the form of a semiellipse The opening...

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Calculus

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A fireplace arch is to be constructed in the form of a semiellipse The opening is to have a height of 3 feet at the center and a width of 8 feet along the base The contractor cuts a string of a certain length and nails each end of the string at the foci of the base in order to sketch the outline of the semiellipse a What is the total length of the string Select b How far from the center should the string be nailed into the base Select

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