Test. 3-guruh

Test. 3-guruh

1. 
   Hisoblang. A)15 B)13 C)21 D)14
   
2. 
   48 sonining barcha natural bo’luvchilarini yig’indisini toping? A) 123 B) 108 C) 124 D)128
   
3. 
   50 dan kichik tub sonlar nechta? A) 15 B) 16 C) 14 D) 17
   
4. 
   270 va 300 sonlarining EKUB ini toping? A) 45 B) 90 C) 30 D) 15
   
5. 
   Proporstiyaning noma’lum hadini toping? A) B) C) D)
   
6. 
   7% i 28 ga teng bo’lgan sonni toping? A) 450 B) 460 C) 400 D) 440
   
7. 
   Bankda 20000 so’m pul oddiy prostent hisobida 2 yil muddatda quyildi. Qo’yilgan pul yiliga 10% ko’payadi. Mijoz bankdan qancha pul oladi?
   

A) 25000 B) 24200 C) 27300 D) 28000

8. 
   M(0;7) va N( ;0) nuqtalardan o’tuvchi to’g’ri chiziq tenglamasini yozing?
   

A) y = 4x+7 B) y = -4x+7 C) y = x-1 D) y = 4x-7 E) y = 7x+7

9. 
   1,25 songa teskari sonni toping? A) 0,8 B) -5/4 C)8 D) -0,8
   
10. 
    x₁ va x₂ x² –ax+20=0 teglamaning ildizlari bo`lib, 1/x₁+1/x₂=9/20 teglikni qanoatlantirsa, a ning qiymatini toping.
    

A)3 B)-3 C)9 D)-1

11. 
    Agar a>b va ab≠0 bo`lsa, quyidagi tengsizliklardan qaysi biri har doim o`rinli?
    

A) 2a>3a-b B) 3a<4a-b C) a²>b² D)1/a>1/b

12. 
    Agar m>3, n>5 va k>6 bo`lsa, 3m+5n-2k ning eng kichik butun qiymatni toping. A) 22 B)13 C)14 D)23
    
13. 
    Agar 38/41+47/51=a bo`lsa, 3/41+4/51 quyidagilardan qaysi biriga teng? A)3-a/2 B)2-a C)4-a D)3-a
    
14. 
    Kvadrat shaklidagi tunikadan eni 3 ga teng bo`lgan qismi qirib olindi. Agar qolgan qismining yuzi 40ga teng bo`lsa, kvadratning tomonini aniqlang. A)6 B)8 C)9 D)10
    
15. 
    x²+4x+a uchhad a ning qanday qiymatida tenglama ildizlari o’zaro teng bo’ladi? A) 4 B)40 C)9 D)1
    
16. 
    a=0,6(5), b=2/3 va c=1-0,3(5). a,b va c sonlar uchun quyidagi munosabatlardan qaysi biri o`rinli?
    

A) b

17. 
    abc+dec=fkmc (abc va dec – uch xonali sonlar, fkmc-to`rt xonali son).
    

f ^a+b +(a+e) ^c +(b+d) ^c ni hisoblang. A)3 B)2 C) 1 D) hisoblab bo`lmaydi

18. 
    y=x²-4x+3 funksiya parapola uchi qaysi choarakda joylashgan?
    

1. 
   I B) II C)III D) IV
   

19. 
    x²-4x+3<0 tengsizlikning tengsizlikning nechta natural yechimi bor?
    

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

20. 
    Amallarni bajaring.
    

1. 
   1 B) 0 C) 43/24 D)24/43
   

21. 
    Tenglamani yeching.
    

1. 
   -16/3 B) 16/3 C) 11/3 D)-11/3
   

22. 
    funksiya x>1 oraliqda o’sishi yoki kamayishini aniqlang?
    

1. 
   o’suvchi B) kamayuvchi C) o’sadi va kamayadi D) TJYU
   

23. 
    funksiyalardan qaysilari juft funksiya?
    

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

24. 
    150! Nechta nol bilan tugaydi? A) 36 B) 37 C) 40 D)30
    
25. 
    1 dan 20 gacha bo’lgan sonlar ichida 6 soni bilan o’zaro tub bo’lgan sonlar nechta? A) 6 ta B) 7 ta C) 8 ta D) 9 ta
    

26. Maxraji 9 ga teng , dan katta va kichik , qisqarmas kasrlar nechta? A) 9 ta B) 10 ta C) 11 ta D) 12 ta
27. P(x) = (2x + 1) funksiya berilgan. Agar P(x) = 15 bo’lsa, x ning qiymatini toping A) x = 15 B) x = 25 C) x = 22 D) to’g’ri javob yo’q
28. f(x) = 2 – 5x formula berilgan bo’lsa, quyidagi tengliklarning qaysi biri to’g’ri. A) f( ) = 3 B) f(4) = 20 C) f( ) = 0,5 D) f(-2) = 12
29. Koordinata tekisligida ABCD kvadrat tasvirlangan. Agar A(-2;-2) , B(-2;2) , C(2;-2) bo’lsa, D nuqtaning koordinatalarini toping. A) D(2;-2) B) D(2;2) C) D(-2;-2) D) D(-2;2)
30. 15²⁰+16²⁰+11²⁰ yig’indining oxirgi raqamini toping? A) 2 B) 1 C)3 D) 31. 13²⁰ sonining 5 ga bo’lganda qoldiqni toping? A) 0 B)1 C)2 D)3
32. (x-1)²(x+3)²(x-2)(x+1)≤0 tengsizlikning barcha butun yechimining yig’indisini toping? A) 1 B) 3 C)-1 D)-3
33. y= 2x²-5x+3 funksiya grafigi qaysi chorakda joylashgan? A) 1 va 3 B) 1,2 va 3 C)1,3 va 4 D) 1,2 va 4
34 y=x²-4x+3 funksiya koordinata o’qlari bilan kesisish nuqtasini toping? A) (1;0), (0;3) B) (1;0),(3;0),(0;3) C)(3;0),(0;3) D)Ø
35. funksiya aniqlanish sohasiga tegishli barcha butun yechimlar ko’paytmasini toping? A) 0 B) 2 C) 1 D) tjyu
36. y=2x²+4x-5 funksiyaning eng kichik qiymatini toping? A) -5 B) 7 C) -1 D)-7
37. y=x²-2x+3 va f(x)=x+3 funksiyalar x ning nechta qiymatida kesishadi? A) 1 B) 2 C)3 D)0
38. Hisoblang. A)9 B)18 C) D)
39. Quyidagi o’nli kasrlarni oddiy kasrga aylantiring. 0,52 ; 0,28 ; 7,5 ; 15,75 ; 27,8
A) B)
C) D)
40. y = kx+b funksiya grafigi M(0;-1), N(1;-5) nuqtalaridan o’tadi. k va b ni toping.
A) k = 2, b = 3 B) k = 3, b = 2 C) k = -4, b = -1 D) k = 2, b = -3
41. To’g’ri chiziq M(0;-5) va N(1;-2) nuqtalardan o’tadi. Shu to’gri chiziq tenglamasini yozing.
A) y = 2x-3 B) y = -3x+5 C) y = 5x-3 D) y = 3x-5
42. To’g’ri chiziq koordinatalar boshidan va M(-2;5) nuqtada o’tadi. Shu to’gri chiziq quyidagi funksiyalardan qaysi birining grafigi bo’ladi:
1. y = - x 2. y = x 3. y = x 4. y = -2x +5 5. y = -2x
A) 2,3 B) 3,4 C) 1,4,5 D) 1
43. y = -9x+5 funksiya grafigida koordinatalari o’zaro teng bo’lgan nuqtani toping. A) ( ; ) B) ( ; ) C) ( ; ) D) ( ; )
44. Soddalashtiring. A) B) C) D)
45. Olxo’ridan 32% olxo’ri qoqi olinadi. Agar 8 kg olxo’ri qoqi olingan bo’lsa qancha olxo’ri quritilgan?
A) 25 kg B) 40 kg C) 30 kg D) 35 kg
46. Amallarni bajaring. A) B)  C) D)
47.Ifodani soddalashtiring. A) B) C) D)
48.Hisoblang. A) 28 B) 14 C) 6 D)
49.Agar va bo’lsa ni hisoblang.

1. 
   164 B) 174 C) 114 D) 154
   

50. Agar bo’lsa ni hisoblang .A) 9/22 B) 19/22 C) 14/22 D) 9/2