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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

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

A) 60˚

B) 100˚

C) 120˚

D) 90˚

2 / 25

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

A) 19

B) 35

C) 18

D) 20

3 / 25

Quyidagilardan qaysi biri chiziqli funksiyaga misol bo'ladi?

A) y=2x+5

B) y=2x²+3

C) y=250

D) y=3x²

4 / 25

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

A) 21

B) 20

C) 19

D) 3

5 / 25

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

A) 24

B) 34

C) 35

D) 25

6 / 25

Quyidagi nuqtalardan qaysi biri y=3x+7 funksiyaga tegishli.

A) (1;11)

B) (3;5)

C) (-1;4)

D) (2;10)

7 / 25

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

A) -3

B) 3

C) -2

D) 3

8 / 25

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

A) 5

B) -5

C) 9

D) 3

9 / 25

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

A) 20

B) 36

C) 23

D) 18

10 / 25

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

A) 90

B) 20

C) 30

D) 180

11 / 25

Funksiya y=-3x+5 formula bilan berilgan. x ning shunday qiymatini topingki y=-1 bo`lsin.

A) x=0

B) x=1

C) x=4

D) x=2

12 / 25

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

A) (0;5)

B) (-2;9)

C) (3;-1)

D) (1;-3)

13 / 25

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

A) Parallelogramm

B) Romb

C) Uchburchak

D) Trapetsiya

14 / 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

15 / 25

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

A) xϵø

B) x>-3

C) x>-3

D) x<3

16 / 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

17 / 25

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

A) x>6

B) x<-6

C) x>-6

D) x<6

18 / 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) 81

B) 87

C) 95

D) 91

19 / 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) 900 so`m, 200 so`m

C) 750 so`m, 350 so`m

D) 800 so`m, 300 so`m

20 / 25

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

A) 2

B) 0

C) 1

D) -3

21 / 25

7x+5 $\geq$ 3(x-1)-4x tengsizlikning yechimi bo`ladigan eng kichik butun sonni toping.

A) x=-1

B) x=2

C) x=-2

D) x=1

22 / 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) -5

B) 6

C) 5

D) -4

23 / 25

Tengsizlikni yeching:

A) x>-0,35

B) x>0,35

C) x>15

D) x<-15

24 / 25

Tenglamani yeching: 2x+1=3

A) 2

B) 0,5

C) 1

D) 3

25 / 25

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

A) x=-2

B) x=-1

C) x=3

D) x=1

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