8-sinif uchun test
Ifodani qiymatini toping.
(1- 1- ) (1-
B) C) D)
2. Koordinata boshidan o’tuvchi va (2;12), (-4;-24) nuqtalardan o’tuvchi funksiya qaysi javobda ko’rsatilgan.
A) y=6x B) y=12x C) y=1-24x D) y=6x+1
3. sonini shu songa 0.0001 gacha aniqlikda teng bo’lgan o’nli kasr bilan almashtirilgan javobni toping.
A) 0.7143 B) 0.7142 C) 0.714 D) 0.7141
4. To’g’ri gaplarni toping.
1) Irratsional son, bu ko’rinishidagi son, bunda m- butun son,
n- natural son.
Irratsional son– cheksiz nodavriy o’nli kasir.
Butun sonlar- sanog’da ishlariladigon sonlar.
Natural sonlar- sanog’da ishlatiladigon sonlar.
A) 2,4 B) 2,3 C) 1,3 D) 1,4
5. Tengsizlikni yeching: (x+2)2<(2x-3)2-8(x-5)
A) xϵ(-∞,3)U(5, +∞) B) x ϵ(3,5) C) x ϵ D) x ϵ(3, +∞)
6. Kvadrat tenglamani yeching. X2-2 x-1=0
A) x1= -2, x2= +2 B) x1=2- x2=2+
C) x1,2= D) x1,2=
7)
A) x=3 B) x= C) x=3, x= D) x=1
8. k ning qanday qiymarlarida -2 soni (k-2)x2-7x-2k2=0 tenglamaning ildizi bo’ladi.
A) k1=3, k2=-1 B) k=3 C) k=-1
D) k ning bunday qiymati yo’q.
9. Sport musobaqalarida yettinchi sinf o’quvchisi 60 m masofani 9s da, sakkizinchi sinif o’quvchisi esa 100m masofani 14.8s da bosib o’tdi. O’quvchilar o’zgarmas tezlik bilan yugurganlar deb hisoblab, kim tezroq yugurganini aniqlang.
A) sakkizinchi sinif o’quvchisi B) yettinchi sinf o’quvchisi C) ikkalasi teng yugurgan D) aniqlab bo’maydi.
10. Ko’paytuvchilarga ajirating. 6x2-3mx-9m2
A) 3(x+m)(2x-3m) B) 3(x+2m)(x-3m)
C) 3(x+2m)(x-3m) D) 3(x-m)(2x-3m)
11. Kasirni qisqartiring:
A) B) C) D)
12. Agar 10 va -15 sonlari x2+px+q=0 tenglamaning ildizlari ekani ma’lum bo’lsa, p va q koeffitsiyetlarni toping.
A) p=5 q=-150 B) p=50 q=15 C) p=-5 q=-150 D) p=50 q=-15
13. Bir tomoni ikkinchi tomonidan 2 sm ortiq bo’lgan to’g’ri to’rtburchakning yuzi tomoni shu to’g’ri to’rtburchak perimetrdan 4sm kichik bo’lgan kvadratning yuziga teng. To’g’ri to’rtburchakning tomonlarini toping.
A) B) C)
D)
14. Ifodani soddalashtiring: 3 - +3 + -
A) 15 - B) 15 - C) 3 - D) -
15. Ko’paytuvchilarni ildiz belgisi ostidan chiqaring:
, bunda x<0, y<0
-3xy2 B) -3xy2 C) -5xy2 D) 3xy2
16. Hisoblang: . - +
A) 8 B) 0 C) -8 D) 7
17. Hisoblang: (2 -3 )2
A) 200 B) C) 0 D)
18. Tenglamani yeching: =3
A) x1=0, x2= C) x=0 C) x1=0, x2= D) x=
19. Tengsizliklar sistemasining yechimlari bo’lgan butun sonlarni toping:
-15;-14;…;-1;0. B) 0;1;2;3;…;15. C) (-15;0) D)
20. Tenglamalar sistemasini yeching:
A) (6;6) B) (2;3) C) (-6;6) D) (6;-6)
21. y=-2x-1 funksiyaning grafigi (-3;5), (-1;3) nuqtadan o’tadimi?
A) yo’q o’tmaydi. B) ha o’tadi. C) aniqlab bo’maydi.
D) bu funkiya koordinata boshidan o’tmaydi.
22. To’g’ri to’rtburchakning bo’yi 32 sm, eni esa 28 sm ga teng. Shu to’g’ri to’rtburchakning peremetriga teng bo’lgan peremetrli kvadratning tomonini toping.
A) 30 B) 60 C) 120 D) 15
23. Trapetsiyaning uchta tomoni 4 sm dan, to’rtinchi tomoni esa 8sm. Trapetsiyaning eng kata burchagini toping.
A) 120ᵒ B) 140ᵒ C) 150ᵒ D) 60ᵒ
24. A(-2;2) va B(2;-4) nuqtalar berilgan. Koordinata boshiga nisbatan berilgan nuqtalarga simmetrik A1 va B1 nuqtalarni toping.
A) A1(2;-2), B1(-2;4) B) A1(-2;-2), B1(-2;-4)
C) A1(2;2), B1(2;4) D) A1(2;-2), B1(-2;-4)
25. A(2;4), B(3;6), C(6;14) nuqtalar berilgan. ni hisoblang.
A) (5;12) B) (12;5) C) (10;5) D)(13;12)
26. Kvadrat bo’lmagan rombning nechta simmetrik o’qi bor?
A) 2ta B) 4ta C) 6ta D) cheksizta
27. Teng yonli uchburchakning balandligi 9 sm. Shu uchburchakka ichki chizilga aylananing radiusini toping?
A) 3 sm B) 4.5 sm C) 6 sm D) 2.5 sm
28. To’g’ri to’rtburchakning yuzi 40 ga, tomonining nisbati 2 : 5 ga teng. Shu to’g’ri to’rtburchakning peremetirini toping.
A) 28km B) 5km C) 2km D) 8km
29. To’g’ri burchakli trapetsiyaning yon tomonlari 15 sm va 9 sm, katta asosi esa 20 sm ga teng. Trapetsiyaning yuzini toping.
A) 126 sm2 B) 100 sm2 C) 128 sm2 D) 162 sm2
30. Aylananing radiusi 13 sm ga teng. Shu aylanada 10 sm ga teng vatar o’tkazilgan. Aylana markazidan vatargacha bo’lgan masofani toping.
A) 12 sm B) 23 sm C) 3 sm D) 13 sm0>
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