
Đề Cương Ôn Tập Toán 9
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Vinh Bui The
Used 9+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khẳng định nào sau đây đúng. Cho a>b khi đó
A. a-b>0
B. a-b<0
C. a-b=0
D. a-b≤0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bất phương trình 5x<2x-3 có nghiệm là
A.x<-1.
B.x>-1.
C.x>-0,5.
D.x<0,5.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Căn bậc hai số học của 9 là
A. -3.
B. 3.
C. 81.
D. -81.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A. -5.
B. 5.
C. -1.
D. 1.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A. 1.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A. -27.
B. 0.
C. -7.
D. một đáp án khác.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho (O; 2cm) và (O'; 3cm) tiếp xúc ngoài. Khi đó OO' bằng
A. 6 cm .
B. 1cm.
C. 4cm.
D. 5cm.
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