
hfjfdko
Quiz
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Dolphin Dacvu
FREE Resource
Enhance your content in a minute
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hai phương trình tương đương là hai phương trình có
A. Một nghiệm giống nhau
B. Hai nghiệm giống nhau
C. Tập nghiệm giống nhau
D. Tập nghiệm khác nhau
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chọn khẳng định đúng
A. Hai phương trình được gọi là tương đương nếu chúng có cùng tập nghiệm
B. Hai phương trình được gọi là tương đương nếu chúng có cùng số nghiệm
C. Hai phương trình được gọi là tương đương nếu chúng có chung một nghiệm
D. Hai phương trình được gọi là tương đương nếu chúng cùng điều kiện xác định
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A)0
B)0;3
C)3
D)0;-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A)-6;12
B)6
C)12
D)-12
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho tứ giác ABCD có đường chéo BD chia tứ giác đó thành hai tam giác đồng dạng ΔABD và ΔBDC. Tính các độ dài BD ,BC biết AB = 2cm ,AD = 3cm ,CD = 8cm
A. BD = 5 cm; BC = 6 cm.
B. BD = 6 cm; BC = 4 cm.
C. BD = 6 cm; BC = 6 cm.
D. BD = 4 cm; BC = 6 cm.
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