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(0.597²-0.403²) / (0.597-0.403) = .....

A10

B1

C0

D0.194

Answer:

B. 1

Read Explanation:

(a²-b²)/(a-b) = a+ b => 0.597 + 0.403 = 1

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(0.38 x 0.38 + 2 x .38 x .62 + .62 x .62) / (0.72 x 0.72 - 2 x .72 x .52 + .52 x .52)