1.

(0.47 x 0.47 x 0.47 - 0.33 x 0.33 x 0.33) / (0.47 x 0.47 + 0.47 x 0.33 + 0.33 x 0.33) = ?

A. 0.14
B. 0.8
C. 15.51
D. 1
Answer» B. 0.8


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