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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

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) 1

C) -3

D) 2

2 / 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

3 / 25

Tenglamani yeching: 2x+1=3

A) 0,5

B) 2

C) 3

D) 1

4 / 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) -4

C) 5

D) 6

5 / 25

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

A) x>-3,3

B) x>3,3

C) x<3,2

D) x<-3,2

6 / 25

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

A) x=2

B) x=-1

C) x=-2

D) x=1

7 / 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) 900 so`m, 200 so`m

B) 950 so`m, 150 so`m

C) 800 so`m, 300 so`m

D) 750 so`m, 350 so`m

8 / 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) 91

C) 87

D) 95

9 / 25

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

A) x=1

B) x=-2

C) x=-1

D) x=3

10 / 25

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

A) x>-6

B) x<-6

C) x>6

D) x<6

11 / 25

Tengsizlikni yeching:

A) x>-0,35

B) x>0,35

C) x>15

D) x<-15

12 / 25

Qavariq 18 burchakning tomonlari sonini toping.

A) 20

B) 9

C) 18

D) 9

13 / 25

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

A) 20

B) 18

C) 35

D) 19

14 / 25

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

A) 20

B) 180

C) 30

D) 90

15 / 25

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

A) 1, 4, -2.

B) 1, 0, 0;

C) 0, 0, -2;

D) 1, 4, 0;

16 / 25

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

A) (3;-1)

B) (0;5)

C) (1;-3)

D) (-2;9)

17 / 25

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

A) grafikli

B) jadvalli

C) chiziqli

D) formulali

18 / 25

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

A) y=9

B) y=1/3

C) y=6

D) y=3

19 / 25

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

A) 100˚

B) 120˚

C) 90˚

D) 60˚

20 / 25

Olti burchakning ichki burchaklari yig`indisini toping.

A) 360˚

B) 720˚

C) 540˚

D) 180˚

21 / 25

106 ni kvadirati toping.

A) 11225

B) 1234

C) 11236

D) 1236

22 / 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

23 / 25

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

A) Parallelogramm

B) Kvadrat

C) Trapetsiya

D) Romb

24 / 25

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

A) (3;5)

B) (2;10)

C) (-1;4)

D) (1;11)

25 / 25

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

A) -5

B) 3

C) 9

D) 5

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