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3/31第三冊+第四冊

Authored by 張偉群 張偉群

Mathematics

9th Grade

Used 1+ times

3/31第三冊+第四冊
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7 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(879² - 776²) 是下列哪一個數的倍數?

100

879

103

776

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

化簡 (5x - 4 - 6x²) - (-2x² + 2 + 5x) = ax² + bx + c, 則 a + b + c?

-14

-10

0

4

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

若一個直角三角形的兩股分別為 2、3,則斜邊上的高為何?

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4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

已知x2-2x-8=( xm ) ( xn ),若m>0,n<0,則下列何者錯誤

m = 2

mn = -6

n = -4

m + n = -2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列何者為方程式3x2-6x-1=0的解?

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6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

x2+4xb=0的兩根為重根,則b=?

4

-4

0

2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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三年丙班學生共有40人,第一次數學測驗成績的相對次數分配直方圖如附圖。請問不滿60分的學生共有多少人?

11

12

13

14

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