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OpenStudy (anonymous):
A machine coats metal spheres with a plastic coating. The metal spheres have a radius of 5 mm. The spheres formed by the metal and plastic coating have a radius of 8 mm. How much plastic coating is on each sphere? Use 3.14 to approximate pi and round the answer to two decimal places. ____mm3
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OpenStudy (anonymous):
@Directrix
Directrix (directrix):
Surface area this time: How much plastic coating is on each sphere? |dw:1421353403576:dw|
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