Quyidagi tengsizlik nechta butun yechimga ega? A b c d 3 2

V ariant3 Test 17

1. Quyidagi tengsizlik nechta butun yechimga ega?

A) 0 B) 2 C) 1 D) 3


2. Quyidagi tenglama nechta ildizga ega?

A) 2 B) 1 C) 4 D) 0


3. Tenglamaning barcha yechimlari yig’indisini toping.

A) 2 B) –4 C) –6 D) –2


4. Ifodaning qiymatini toping.

A) 12,5 B) 13 C) 14 D) 23


5. , va Ushbu sonlarni o’sish tartibida yozing.
A) pC) m


6. Koordinata o’qlari to’g’ri chiziqdan qanday uzunlikdagi kesma ajratadi?
A) 12,5 B) 13 C) 14 D) 13,5


7. tenglamaning nechta ildizi bor?
A) 1 B) 4 C) 3 D) 2


8. ning butun qismini toping.
A) –2 B) –1 C) 0 D) 1


9. va funksiyalar grafiklarining kesishish nuqtalar absissalarining kvadratlari yig’indisini toping.
A) 36 B) 48 C) 24 D) 52


10. m ning qanday qiymatlarida tenglamaning ildizlari qarama-qarshi bo’ladi?
A) 1,5 va –1,5 B) 1,5
C) D)


11. Agar bo’lsa, ni hisoblang.
A) 2 B) 3 C) 1 D) 4


12. Har qanday uchtasi bir to’g’ri chiziqda yotmaydigan 7 ta nuqta orqali nechta turli to’g’ri chiziq o’tkazish mumkin?
A) 28 B) 21 C) 42 D) 35


13. ni soddalashtiring.
A) 2 B) –1 C) 3 D)


14. Nechta natural sonlar jufti tenglikni qanoatlantiradi?
A) 3 B) 4 C) 2 D) 5


15. Agar x+y+z=6, x-y+z=4 va z+y-x=0 bo’lsa xyz ning qiymatini toping.
A) 5 B) 6 C) 7 D) 8