1. Soa t 12 da minut va soat millari ustma ust tushadi. Yana necha minutdan so’ng ular yana ustma ust tushadi

2-varyant

1. Soa t 12 da minut va soat millari ustma ust tushadi. Yana necha minutdan so’ng ular yana ustma ust tushadi.

2. Daslapki 1000 ta son orasidan 2, 3, 5 va 7 ga bo’linmaydigonlari nechta?

A) 193 B) 197 C) 194 D) 235 E) 273

3. Soddalashtiring.

4. Agar paralelogramning qo’shni burchaklari bo’lsa va sin hisoblang

A) 30⁰;150⁰ B) 135⁰;45⁰ C) 120⁰;60⁰ D) 150⁰;30⁰ E) 45⁰;135⁰

5. Katetlar yig’indisining gipotenuzaga nisbati qaysi oraliqda bo’lishi munkun.

A) (0;1)N B) (1;2) C) (2;3) D) (1/2;3/2) E) (3/2;2)

6. Agar f(x+1/x)=x²+1/x² bo’lsa f(x) ni topi g.

A) x² B) x²-2 C) x²+2 D) –x²-2 E) x

7. Uchburchak balandliklari 2sm, 3sm va 6sm bo’lsa unga ichki ylana radiusini toping.

A) 1 B) 1,2 C) 1,5 D) 1,4 E) 0,9

8. +1 ni oxirgi raqamini toping.

A) 3 B) 5 C) 7 D) 9 E) 1

9. x²+x+a=0 va x²+ax+1=0 tenglamalar umumiy ildizga ega bo’ladigon a ni toping.

A) -2 B) -1 C) 0 D) 1 E) 2

10. Teng yonli trapetsiya o’rta chizig’i 5 ga teng diogonallari o’z’aro perpendikulyar bo’lsa yuzi qancha.

A) 5 B) 15 C) 25 D) 35 E) 45

11.Uchburchak ikki burchagi yig’indisining kosinusi 1/3 gat eng. Uchinchi burchagini kosinusini toping.

12 O’tmas burchagi 120⁰ga asoslarining uzunliklari 6 va 2 ga teng bo’lgan teng yonli trapetsiyani peremetirini toping.

A) 12 B) 16 C) 18 D) 20 E) 14

13 Agar 2x+y=9 va kx+5y=18 chiziqlarning, kesishgan nuqtasi I-chorak bissektrissasida yotsa k ni toping.

A) 1 B) 2 C) 3 D) 1/2 E) 1/3

14. 5- tenglama yechimlari oralig’ini uzunligini toping.

A) 2 B) 3 C) 1/2 D) 4 E) 1

15. Agar cos ni toping.

A) 4 B) 2 C) 5 D) 3 E) 1

16. a ni qanday qiymatlarida a(x²+x+1)=x²-4x-7 tenglama yagona yechimga ega.

A) 0 B) 1 C) 2 D) 3 E) 4

1 7. 0, 0, AB=2 sm bo’lsa

BC ni toping.

A) 2+ B) (3+ ) C) 1+2 D) 2 -1 E) +1

18. Ketma ket keluvchi 4ta juft sonlar yig’indisi a ga teng eng katta juft sonni toping.

19. Agar kvadrat peremetri 10% ortsa uning yuzi necha foiz ortadi.

20. 1∙2∙3∙4∙5∙6∙7∙8∙9 ning nechta bo’luvchisi bor.

21. ifoda natural bo’ladigon a ning eng katta qiymatini toping.

22. Agar m= va n= bo’lsa ni n da ifodalang.

23Bochkadagi suv otning o’ziga 14kunga , toychoq ikkisiga 10 kunga yetadi.Bochkadagi suv toychoqni o’ziga necha kunga yetadi.

24. Agar x²y+xy²=48 va x²y-y²x=16 bo’lsa x/y ni toping.

25. Uchburchakning bir uchidan chiquvchi mediana va balandlik shu burchakni teng 3 ga bo’ldi. Uchburchakning burchaklarini toping

S	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
J	B	B	D	B	A	B	C	B	A	C	E	B	A	A	C	B	B

18) 19) 21% 20) 160 21) 3 22) 2n² 23) 35 kunga 24) 2 25) 30⁰, 60⁰, 90⁰