
3/31第三冊+第四冊
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
張偉群 張偉群
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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?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
已知x2-2x-8=( x+m ) ( x+n ),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?
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若x2+4x+b=0的兩根為重根,則b=?
4
-4
0
2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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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