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A necklace has a single pearl with a radius of 2.1 millimeters. What is the volume of the pearl? Round to the nearest tenth.

 Jun 9, 2020
 #1
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Use the volume formula of a sphere to get the volume of the pearl:
v = 4/3 pi r

v = 4/3 pi (2.1)3

v = 4/3 pi (9.261)

v = 38.79238608

v = 38.8 mm3

 Jun 9, 2020
 #2
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volume=\(\frac43\)\(\pi\)\(r^3\)

so the answer is 12.348\(\pi\)

which is approximently 38.7923861

 Jun 9, 2020

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