31. Ifodani soddalashtiring: a b c d

31.Ifodani soddalashtiring:
A) B) C) D)
32. tengsizlikning barcha butun yechimlari ko’paytmasini toping?
A) -4 B) 4 C) 2 D) -2
33. va sonlar tenglamaning ildizlari bo`lsa, ni hisoblang.
A) 144 B) 196 C) 121 D) 169
34. ifodaning bo’lgandagi qiymatini toping.
A) 1 B) C) D)
35. To’g’ri burchakli uchburchakning yuzi 12 ga teng, katetlari 3:4 nisbatga teng bo’lsa, uchburchakning balandligini toping.
A) B) C) D) 4,8
36. sonlar jufti tenglamalar sistemasini qanoatlantirsa, ning qiymatini toping.
A) 9 B) 23 C) 7 D) 29
37. O’suvchi gemetrik progressiya uchun tenglik o’rinli bo’lsa, ni toping.
A) 8 B) 24 C) 16 D) 14
38. bo’lsa ni toping.
A) 10 B) 8 C) 9 D) 18
39. Kubning yon sirtining yuzi 256 bo’lsa, uning hajmini toping.
A) 256 B) 248 C) 512 D) 1024
40. Rombning tomoni 6 sm, bitta burchagi ga teng. Romb tomoniga va kichik diognaliga urunuvchi aylananing radiusini (sm) toping.
A) 4 B) 3 C) D) 2
41. O’ziga qo’shni bo’lgan burchakning 20% ga teng bo’lgan burchakni toping.
A) B) 25 C) D)
42. quyidagilarning qaysilariga bo’linmaydi.
A) B) C) D)
43. tengsizlikning eng kichik musbat va eng katta butun manfiy yechimlari ayirmasini toping.
A) 8 B) 5 C) 3 D) 2
44. tenglamani yeching.
A) 2,(4) B) 2,4 C) 2,(5) D) 2,5
45. Uchburchakli piramida asosining tomonlari 6; 4 va 5 ga teng. Uning barcha yon qirralari asos tekisligiga burchak ostida og’ishgan . Piramidaning hajmini toping.
A) 20 B) 5 C) 10 D) 30
46. tengalama ildizlari ko`paytmasini (agar ildizi bitta bo`lsa ildizini) toping.
A) 10 B) 5 C) 1 D) 25
47. va vektorlar orasidagi burchak kosinusini toping.
A) B) C) D)
48. tenglama oraliqda nechta ildizga ega?
A) 3 B) 6 C) 2 D) 4
49. Uchta yashikda 64,2 kg meva bor. 2-yashikdagi meva 1-yashikdagi mevaning 0,8 qismini tashkil qiladi, 3-yashikda esa 2-yashikdagining 42,5% miqdoricha meva bor. Birinchi yashikda qancha meva bor.
A) 36 kg B) 30 kg C) 28 kg D) 24 kg
50. ni hisoblang.
A) 4 B) 2 C) 1 D) 3
51.Agar tenglik o’rinli bo’lsa, nima teng bo’ladi.
A)