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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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(0.27)2+(0.21)2+(0.29)2(0.027)2+(0.021)2+(0.029)2 \sqrt { \frac{(0.27)^2+(0.21)^2+(0.29)^2 }{(0.027)^2+(0.021)^2+(0.029)^2 }} =