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A(X2-X1)/t2

B(X2/t2)+(X1/t1)

CX2/(t2-t1)

D(X2-X1)/(t2-t1)

Answer:

D. (X2-X1)/(t2-t1)

Read Explanation:

The average velocity of an object is calculated by the formula (x2 - x1) / (t2 - t1)

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