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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 qiymatlarida kasrdan katta bo`ladi?

A) x<3/16

B) x<-3/16

C) x>1/16

D) x>-1/16

2 / 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) 91

C) 87

D) 81

3 / 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) 36

C) 26

D) 20

4 / 25

Tenglamani yeching: 2x+1=3

A) 3

B) 0,5

C) 1

D) 2

5 / 25

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

A) x=-2

B) x=1

C) x=3

D) x=-1

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

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) -3

D) 1

8 / 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) 800 so`m, 300 so`m

B) 950 so`m, 150 so`m

C) 750 so`m, 350 so`m

D) 900 so`m, 200 so`m

9 / 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

10 / 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

11 / 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

12 / 25

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

A) x=5

B) x=-5

C) x=3

D) x=-3

13 / 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

14 / 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

15 / 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

16 / 25

106 ni kvadirati toping.

A) 11236

B) 1236

C) 11225

D) 1234

17 / 25

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

A) 1, 4, -2.

B) 1, 4, 0;

C) 1, 0, 0;

D) 0, 0, -2;

18 / 25

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

A) 90˚

B) 60˚

C) 100˚

D) 120˚

19 / 25

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

A) 20

B) 21

C) 19

D) 3

20 / 25

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

A) formulali

B) chiziqli

C) grafikli

D) jadvalli

21 / 25

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

A) y=6

B) y=1/3

C) y=3

D) y=9

22 / 25

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

A) 9

B) 3

C) -5

D) 5

23 / 25

Tenglamalar sistemsini yechishning necha xil usuli bor.

A) 3 xil

B) 4 xil

C) 2 xil

D) 1 xil

24 / 25

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

A) 180

B) 30

C) 20

D) 90

25 / 25

Quyidagilardan qaysi biri chiziqli funksiyaga misol bo'ladi?

A) y=2x+5

B) y=250

C) y=2x²+3

D) y=3x²

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