SOLUTION: 9 = cube root 3C... How do I find the value of C? My book answer says 243

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Question 785429: 9 = cube root 3C... How do I find the value of C?
My book answer says 243
Answer by Alan3354(69443) About Me  (Show Source):
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9 = cube root 3C... How do I find the value of C?
My book answer says 243
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9+=+root%283%2C3C%29
Raise both sides to the 3rd power.
729 = 3C
C = 243