A machinist is required to manufacture a circular metal disk with an area of 700 cm^2. (a) What radius produces such a disk? (Round your answer to four decimal places.) (b) If the machinist is allowed an error tolerance of ±6 cm^2 in the area of the disk, how close to the ideal radius in part (a) must the machinist control the radius? (Round your answers to four decimal places.) What value of ε is given? What is the corresponding value of δ? (Round your answer to four decimal places.)
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