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Jussi · Answer 1 · 2019-04-12T05:33:29+0000

The formula of the volume of the sphere:

$V=(4)/(3)\pi r^3$
We have a diameter. It's equal double radius.
Therefore

$2r=9(1)/(2)\\\\2r=9.5\ \ \ |:2\\\\r=4.75\ in.$

$V=(4)/(3)\pi\cdot(4.75)^3\approx449\ in^3.$
Answer: D. 449 cubic inches.

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