Matematika fanidan Bilimlar bellashuviga tayyorgarlik

1- variant

1. Ifodaning qiymatini toping:

A) 4,1 B) 5 C) 3 D) 4

2. Soddalashtiring:

A) B) C) D)

3. Agar bo`lsa, ifodaning qiymatini toping.

A) 1,05 B) – 1,05 C) – 10,5 D) 10,5

4. Tenglamani yeching:

A) 11 B) 12 C) 1,1 D) 1,2

5. Buva va otasining yoshlari yig`indisi 111 yilga teng. Agar ota buva yoshidan ikki marta kichik bo`lsa, har birining yoshi nechada ?

A) 37; 72 B) 76; 35 C) 37; 74 D) 42; 84

6. Agar va bo`lsa, ni toping.

A) B) 1 C) D)

7. Soddalashtiring:

A) B) C) D)

8. Ifodani soddalashtiring:

A) B) C) D)

9. Ifodani ko`paytuvchilarga ajrating:

A) B) C) D)

10. Algebraik kasrni qisqartiring:

A) B) C) D)

11. Hisoblang:

A) B) C) D)

12. Asosi BC bo`lgan teng yonli ABC uchburchakning perimetri 40 sm va teng tomonli BCD uchburchakning perimetri 45 sm ga teng. AB va BC tomonlarni toping.

A) AB =12,5 sm; BC =15 sm; B) AB =15 sm; BC =12,5 sm;

C) AB =12 sm; BC =16 sm; D) AB =16 sm; BC =12 sm;

13. Agar qo`shni burchaklardan biri ikkinchisudan 45<sup>0</sup> katta bo`lsa,ularni toping .

A) B) C) D)

14. Qo`shni burchaklar 145<sup>0</sup> va 35<sup>0</sup> ga teng. Bu qo`shni burchaklar bissektrisalari tashkil qilgan burchakni toping.

A) B) C) D)

15. Uchburchakning barcha tashqi burchaklarining yig`indisini toping.

A) B) C) D)

16. ABC uchburchakning AD medianasi BC tomondan keyin DE= AD bo`lgan kesmaga davom ettirilib, E nuqta B nuqta bilan tutashtirildi.Agar ACD=45<sup>0</sup>, ABD=35<sup>0</sup> bo`lsa, ABE ni toping.

A) B) C) D)

17. 4ta to`g`ri chiziq tekislikni ko`pi bilan nechta qismga ajratishi mumkin?

A) 6 ta B) 8 ta C) 9 ta D) 11 ta

18. Ikkita parallel to`g`ri chiziqlarni to`g`ri chiziq bilan kesishishidan hosil bo`lgan mos burchaklarning yig`indisi 210⁰ ga teng.Bu burchaklarni toping.

A) B) C) D)

19. Kasrni qisqartiring:

A) B) C) D)

20. Kasrni qisqartiring:

A) –a(b+1) B) C) D)

21. Tenglamani yeching:

22. Kasrni qisqartiring:

23. Ifodani soddalashtiring:

24. Ko`paytuvchilarga ajrating:

25. Agar bo`lsa, ABC uchburchakning burchaklarini toping.

26. Uchburchakning ikkita uchidagi tashqi burchaklari o`zaro teng va perimetri

74 sm, uning bir tomoni 16 sm ga teng. Ikkita qolgan tomonlarini toping.

27. To`g`ri burchakli uchburchakning gipotenuzasiga tushirilgan medianasi 8 sm. Uchburchakning burchaklaridan biri 60⁰ bo`lsa, bu burchakka yopishgan tomonlarini toping.

28. AB va BC – markazi O nuqtada bo`lgan aylananing vatarlari, . Agar aylana radiusi 12 sm ga teng bo`lsa, AC vatarning uzunligini toping.

29. a ning qanday qiymatlarida ax-5=a+7x tenglama yechimga ega bo`lmaydi?

30. Usta buyurtmani 8 kunda bajarishi kerak edi. U har kuni rejadan tashqari 6 ta mahsulot tayyorlab, buyurtmani 5 kunda bajaribgina qolmasdan, balki ortiqcha yana 12 ta mahsulot tayyorladi. Usta reja bo’yicha bir kunda nechta mahsulot tayyorlashi kerak edi?

Testlar. 7-sinf.