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30.已知數線上由左而右的三點A(-18)、B(x)、C(12)。若 ,則x值為何?(A) (B) (C) (D)
問題詳情
30.已知數線上由左而右的三點A(-18)、B(x)、C(12)。若
,則x值為何?
(A)
(B)
(C)
(D)
參考答案
答案:B
難度:
計算中
-1
書單:
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20.如圖(十一),△ABC 中,I 點為內切圓的圓心,△ABI 的面積為 34, △ACI 的面積為 30,△BCI 的面積為 16,則 =? (A) 3:4:5 (B) 5:3:4 (C) 17:
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There are many museums in Taiwan, especially in Taipei. Here names you some of them: National Palace
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10. 利用配方法將 4x2+8x+a 化成 b(x+c)2+3 的形式,則 a+b+c=? (A) 9 (B) 12 (C) 13(D) 25。
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