Matematika fanidan 9 –sinf 2-variant

Matematika fanidan 9 –sinf
2-variant.
1.Yuzi 9 sm² bo’lgan doirani o’rab turgan aylana uzunligini toping.
A)6 B)12 C)9 D)3
2. Tenglama nechta yechimga ega: =-3
A) yechimga ega emas B)1 C)4 D)2
3. Tengsizlikni yeching: x+1>7-2x
A) x<2 B) x>-2 C) x>2 D) x<-2
4. To’g’ri burchakli uchburchakning perimetri 36 sm. Tomonlarining nisbati nisbati 5:4:3 . Uchburchak tomonlarini toping.
A) 9,13,14 B)12,8,16 C)9,12,15 D)12,12,12,
5. Aksioma deb nimaga aytiladi?
A) Isbot talab qiladigan jumla B) Isbot talab qilmaydigan jumla C) Teoremaning teskarisi D) To’g’ri javob ko’rsatilmagan
6. Geometriya necha qismdan iborat?
A)4 B)3 C)2 D)5
7. x²+10x- 21 parabola uchining koordinatalari ko`paytmasini toping.
A)-51 B)51 C)-230 D)230
8. x² + 6x+5< 0 tengsizlikning barcha butun yechimlari yig`indisini toping
A)-10 B)9 C)10 D)-9
9. Ikkita o`xshash ko`pburchakning perimetri mos ravishda 64 sm va 256 sm bo`lib , birinchisining yuzi 100 sm<sup>2</sup> bo`lsa , ikkinchi ko`pburchak yuzini toping?
A) 512 sm² B) 400 sm² C) 1296 sm² D) 1600 sm²
10. Tengsizlikni yeching.
A) < B) C) < D) -1
11. ² – 4 funksiyaning grafigi qaysi chorakda joylashgan?
A) II, III B) I,IV C) I, II D) I, II, III ,IV
12. Parabola uchining koordinatalarini toping. ²+4
A) (4;2) B) (0;4) C) (2;-4) D) (-4;2)
13. Ikkita o`xshash ko`pburchakning yuzlari mos ravishda 64sm² va 576 sm² bo`lib , birinchisining peremetri 112 sm bo`lsa ikkinchi ko`pburchak peremetrini toping?
A)225 sm B)336 sm C)256 sm D)448 sm
14. Kvadrat funksiyaning nollarini toping? ²-3
A) x₁=0 x₂=4 B) x₁=0 x₂=3 C) x₁=0 x₂= -4 D) x₁=0 x₂= -3
15. Soddalashtiring. 2a² +2ab + 3b² – a² -2b²
A) a² +2ab B) ( ) ² C) ( ) ² D)a²+b²
16. Hisoblang.
17. songa teskari sonni toping ?
18.Katetlari 12 va 5 bo’lgan to’g’ri burchakli uchburchakning yuzini toping?
19.Tengsizlikni yeching: 2x-3<12-3x
20. y=x²-6x +5 tenglama bilan berilgan parabolaning uchini toping