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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

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

A) 180(n-3)

B) 180(n-2)

C) 180(n-2)/n

D) n-2/n

2 / 25

Qavariq 18 burchakning tomonlari sonini toping.

A) 18

B) 9

C) 20

D) 9

3 / 25

Ta'rifni to'ldiring. Tamonlari teng bo'lgan to'g'ri to'rtburchak .... deb ataladi.

A) Kvadrat

B) Romb

C) Parallelogramm

D) Trapetsiya

4 / 25

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

A) tegishli

B) tegishli emas

5 / 25

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

A) 19

B) 20

C) 3

D) 21

6 / 25

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

A) y=1/3

B) y=3

C) y=9

D) y=6

7 / 25

To'g'ri to'rtburchakning perimetri 66 smga teng eni esa 15 sm. Shu to'rtburchakning bo'yini toping?

A) 18

B) 20

C) 36

D) 23

8 / 25

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

A) Parallelogramm

B) Romb

C) Trapetsiya

D) Uchburchak

9 / 25

Quyidagilardan qaysi biri chiziqli funksiyaga misol bo'ladi?

A) y=2x²+3

B) y=3x²

C) y=250

D) y=2x+5

10 / 25

y=kx+4 funksiya grafigi M(1;1) nuqtadan o`tishi mumkin bo`lsa, k ni toping.

A) 3

B) -3

C) 3

D) -2

11 / 25

To`g`ri to`rtburchakning 3 ta burchagi mos ravishda 40⁰, 80⁰, 140⁰bo`lsa to`rtinchi burchagini toping.

A) 60˚

B) 90˚

C) 120˚

D) 100˚

12 / 25

y=kx+b funksiya qanday funksiyaga misol bo`ladi.

A) grafikli

B) chiziqli

C) jadvalli

D) formulali

13 / 25

Tenglamalar sistemsini yechishning necha xil usuli bor.

A) 4 xil

B) 2 xil

C) 3 xil

D) 1 xil

14 / 25

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

A) 25

B) 34

C) 35

D) 24

15 / 25

4 ga bo`lganda 3 qoldiq, 10 ga bo`lganda 1 qoldiq chiqadigan va ikkinchi bo`linma birinchi bo`linmadan 13 ta kam bo`ladigan natural sonni toping.

A) 95

B) 87

C) 81

D) 91

16 / 25

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

A) x=3

B) x=-3

C) x=5

D) x=-5

17 / 25

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

A) x=3

B) x=-2

C) x=-1

D) x=1

18 / 25

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

A) x=-6

B) x=7

C) x=-7

D) x=6

19 / 25

Tenglamani yeching: 2x+1=3

A) 0,5

B) 1

C) 3

D) 2

20 / 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) 26

B) 72

C) 36

D) 20

21 / 25

Tenglmalar sistemasini yeching.

A) x=-6, y=2

B) x=2, y=-6

C) x=6, y=-2

D) x=-2, y=6

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

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

A) 15/15

B) 1/3; 1/2

C) 15/8

D) 1/2; 1/2

24 / 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) -4

C) -5

D) 5

25 / 25

x ning qanday qiymatlarida kasrdan katta bo`ladi?

A) x<-3/16

B) x<3/16

C) x>1/16

D) x>-1/16

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