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(0.45 x 0.45 x 0.45 - 0.21 x 0.21 x 0.21) / ( 0.45 x 0.45 + 0.45 x 0.21 + 0.21 x 0.21)

A0.45

B0.41

C0.24

D0.26

Answer:

C. 0.24

Read Explanation:

(a³-b³)/a²+ab+b² = a-b = 0.45 - 0.21 = 0.24


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