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8-sinf Matematika 2-chorak

InfoMaster

Aprel 20, 2021

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8-sinf Matematika 2-chorak

Testni Shirinboyev Temur tayyorladi.

1 / 25

x ning qanday qiymatida funksiyaning qiymati 1 ga teng bo’ladi

A) 15/15

B) 1/2; 1/2

C) 15/8

D) 1/3; 1/2

2 / 25

Tengsizliklar sistemasining yechimi bo`ladigan eng katta butun sonni toping:

A) x=-2

B) x=-1

C) x=1

D) x=3

3 / 25

7(1-x)>5(3-x) tengsizlikning yechimi bo`ladigan eng katta butun sonni toping.

A) x=3

B) x=5

C) x=-5

D) x=-3

4 / 25

Tenglamani yeching: 2x+1=3

A) 2

B) 3

C) 1

D) 0,5

5 / 25

Tenglmalar sistemasini yeching.

A) x=-6, y=2

B) x=2, y=-6

C) x=-2, y=6

D) x=6, y=-2

6 / 25

(x,y ) sonlar juftligi $\left\{\begin{matrix} {7x-8y=10} & \\ {2x+y=-7} & \end{matrix}\right.$ sistemaning yechimi bo`lsa, y*x ni aniqlang

A) 6

B) -5

C) -4

D) 5

7 / 25

Tengsizlikni yeching:

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

A) x<-6

B) x>1

C) x<-1

D) x>-1

8 / 25

Tengsizlikni yeching: 5(x-3)+2x<4x+3

A) x>6

B) x<-6

C) x<6

D) x>-6

9 / 25

Tengsizlikni yeching:

A) x<-15

B) x>0,35

C) x>15

D) x>-0,35

10 / 25

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

A) x<3,2

B) x<-3,2

C) x>3,3

D) x>-3,3

11 / 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) 72

B) 26

C) 36

D) 20

12 / 25

Ta'rifni to'ldiring. Ikala tamoni parallel, qolgan tamonlari parallel bo'lmagan to'rtburchak .... deb ataladi.

A) romb

B) parallelogramm

C) kvadrat

D) trapetsiya

13 / 25

Ta'rifni to'ldiring. Qarama-qarshi tamonlari o'zaro parallel bo'lgan to'g'ri to'rtburchak .... deb ataladi.

A) Uchburchak

B) Parallelogramm

C) Romb

D) Trapetsiya

14 / 25

Ta'rifni to'ldiring. Tamonlari teng bo'lgan parallelogramm .... deb ataladi.

A) Uchburchak

B) Romb

C) Parallelogramm

D) Trapetsiya

15 / 25

Quyidagilardan qaysi biri chiziqli funksiyaga misol bo'ladi?

A) y=250

B) y=3x²

C) y=2x+5

D) y=2x²+3

16 / 25

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

A) 35

B) 19

C) 18

D) 20

17 / 25

Olti burchakning ichki burchaklari yig`indisini toping.

A) 360˚

B) 720˚

C) 540˚

D) 180˚

18 / 25

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

A) 1, 4, 0;

B) 1, 0, 0;

C) 1, 4, -2.

D) 0, 0, -2;

19 / 25

Qavariq 18 burchakning tomonlari sonini toping.

A) 9

B) 9

C) 18

D) 20

20 / 25

Quyidagi nuqtalardan qaysi biri y=-2x+5 funsiyaga tegishli emas?

A) (0;5)

B) (3;-1)

C) (-2;9)

D) (1;-3)

21 / 25

y=3x funksiyaning x=3 bo`lganda y ning unga mos qiymatni toping.

A) y=3

B) y=6

C) y=1/3

D) y=9

22 / 25

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

A) 21

B) 3

C) 20

D) 19

23 / 25

S(t)=60t funksiya berilgan bo'lsa, S(3) ni toping.

A) 180

B) 30

C) 90

D) 20

24 / 25

y=-2x+b fuksiya grafigi M(-1;7) nuqtadan o`tadi, b ni toping.

A) 9

B) 5

C) -5

D) 3

25 / 25

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

A) n-2/n

B) 180(n-2)

C) 180(n-3)

D) 180(n-2)/n

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