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maths (04會考MC)....請列出計算步驟...吾該~~~~~~
2017/06/13 06:20
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maths (04會考MC)....請列出計算步驟...吾該~~~~~~

發問:

the mean deviation ofthe four numbers x-8, x-2, x+3 and x+7 is A.x B.0 C.5 D. 5.6

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最佳解答:

(x-8)+(x-2)+(x+3)+(x+7)/4 =(4x+0)/4 =x

其他解答:

the mean deviation ofthe four numbers x-8, x-2, x+3 and x+7 is (x-8)+(x-2)+(x+3)+(x+7)OVER4 =4x over 4 =x =A

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