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8-sinf Matematika 4-chorak

InfoMaster

May 5, 2021

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8-sinf Matematika 4-chorak

Testni Shirinboyev Temur tayyorladi.

1 / 25

17 : 25 sonini 0,1 gacha aniqlikda o’nli kasr ko’rinishida tasvirlang:

A) 0,8

B) 0,7

C) 0,5

D) 0,9

2 / 25

Tengsizlikning ikkala qismini 2 ga bo’ling: -2< 5

A) -1≤2,5

B) -1<2,5

C) -1<0,5

D) 1<5

3 / 25

To’g’ri to’rtburchakning yuzi 400 ga,tomonlarining nisbati 4:1 ga teng. Shu to’g’ri to’rtburchakning perimetrini toping

A) 100

B) 120

C) 200

D) 80

4 / 25

Tenglamani yeching: $\sqrt{x+9}=5$

A) 11

B) 20

C) 32

D) 16

5 / 25

To’g’ri burchakli uchburchakning katetlaridan biri 12 sm gipatenuzasi ikkinchi katetdan 6 sm uzun.Gipotenuzaning uzunligini toping :

A) 16

B) 15

C) 14

D) 17

6 / 25

To'rtburchak tomonlari 6mm, 8mm, 10mm va 1sm ga teng. Shu to`rtburchakning perimetrini toping.

A) 35

B) 34

C) 24

D) 25

7 / 25

Qavariq n burchak ichki burchaklarning yig`indisi qaysi formula yordamida topiladi?

A) 180(n-2)/n

B) n-2/n

C) 180(n-3)

D) 180(n-2)

8 / 25

Nuqtalar abssissasini toping. (1;0), (4;0), (0;-2)

A) 0, 0, -2;

B) 1, 4, 0;

C) 1, 0, 0;

D) 1, 4, -2.

9 / 25

To'g'ri to'rtburchak bir tomoni 16 smga perimetri 70 smga teng ikkinchi tomonini toping.

A) 18

B) 19

C) 35

D) 20

10 / 25

Funksiya y=x+2 formula bilan berilgan bo'lsa, M(0;2) nuqta shu funksiyaga tegishlimi?

A) tegishli emas

B) tegishli

11 / 25

Funksiya y(x)=2x-1 formula bilan berilgan bo'lsa, y(10) ni toping.

A) 21

B) 20

C) 19

D) 3

12 / 25

Ikki soning ayirmasi 3 ga, ularning ko`paytmasi 28 ga teng. Shu sonlarni toping

A) 17 va 14

B) 7 va 4

C) 7 va 14

D) 5 va 2

13 / 25

Tenglamani yeching

A) x₁,₂=±12

B) x₁,₂=-12

C) x₁,₂=12

D) x=-12

14 / 25

Kvadrat tenglamani yeching $x^{2}+x+1=0$

A) x₁=2, x₂=0

B) x₁=-1, x₂=1

C) ø

D) x₁=-2, x₂=-2

15 / 25

Hisoblang: $\sqrt{28-12}$

A) 16

B) 4

C) 3

D) -4

16 / 25

Tenglmalar sistemasini yeching

A) x=-2 , y=1

B) x=1 , y=2

C) x=-4 , y=-1

D) (1;4) va (4;1)

17 / 25

Tenglmalar sistemasini yeching

A) x=3, y=1

B) x=2, y=-2

C) x=5, y=-1

D) x=1, y=-1

18 / 25

To‘g‘ri tasdiqni aniqlang

A) Agar а > 4, b > 6, bo‘lsa а + b < 9

B) Agar а < 4, b < -5, bo‘lsa аb < 20

C) TJY

D) Agar а > -5, b > 7, bo‘lsa аb > 36

19 / 25

Ikki xonali sonning raqamlari yig`indisi 9 ga teng. Shu raqamlar bilan teskari tartibda yozilgan son berilgan sondan 27 ta ortiq. Berilgan sonni toping.

A) 20

B) 36

C) 72

D) 26

20 / 25

x ning qanday qiymatlarida kasrlar yig`indisidan kichik bo`ladi?

A) x<-3,2

B) x>-3,3

C) x>3,3

D) x<3,2

21 / 25

Tengsizlikni yeching:

4(x-1)+5(x+1)<6(x+2)+7(x-1)

A) x>-1

B) x<-6

C) x<-1

D) x>1

22 / 25

Tengsizliklar sistemasini yeching: $\left\{\begin{matrix} 3(1-x)>5-4x& \\ 13+4x<1 && \end{matrix}\right.$

A) x>-3

B) x<3

C) xϵø

D) x>-3

23 / 25

a ning qanday qiymatlarida $\left\{\begin{matrix} ax-2y=0 & \\ 3x+2y=5& \end{matrix}\right.$ tenglamalar sistemasi yechimga ega bo`lmaydi.

A) 0

B) -3

C) 2

D) 1

24 / 25

Kitob va daftar birgalikda 1100 so`m turadi. Kitob narxining 5% i daftar narxining 10% idan 25 so`m qimmat. Kitob va daftar alohida-alohida qancha turadi.

A) 950 so`m, 150 so`m

B) 800 so`m, 300 so`m

C) 900 so`m, 200 so`m

D) 750 so`m, 350 so`m

25 / 25

Tengsizlikni yeching: