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8-sinf Matematika 3-chorak

InfoMaster

Aprel 20, 2021

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8-sinf Matematika 3-chorak

Testni Shirinboyev Temur tayyorladi.

1 / 25

n ning quyidagi tengsizlikni qanoatlantiruvchi butun sondan iborat eng katta qiymatini toping: n≤3

A) n=2

B) n=-3

C) n=-2

D) n=3

2 / 25

87:124 bo’linmani 0,001 gacha aniqlik bilan hisoblang:

A) 0,703

B) 0,207

C) 0,72

D) 0,702

3 / 25

0,09 sonining arifmetik kvadrat ildizini toping:

A) 3

B) 0,3

C) 0,03

D) 0,003

4 / 25

Tenglamani yeching: $\sqrt{x+9}=5$

A) 11

B) 16

C) 20

D) 32

5 / 25

To’g’ri burchakli uchburchakning katetlaridan biri 12 sm gipatenuzasi ikkinchi katetdan 6 sm uzun.Gipotenuzaning uzunligini toping :

A) 16

B) 17

C) 15

D) 14

6 / 25

17 : 25 sonini 0,1 gacha aniqlikda o’nli kasr ko’rinishida tasvirlang:

A) 0,8

B) 0,5

C) 0,7

D) 0,9

7 / 25

Tengsizlikning ikkala qismini 2 ga bo’ling: -2< 5

A) 1<5

B) -1<2,5

C) -1<0,5

D) -1≤2,5

8 / 25

x₁=4,92 son x₂=4,9 bo’lsa, yaqinlashish xatoligini toping?

A) 0,09

B) 0,02

C) 0,8

D) 0,9

9 / 25

3 : 7 sonining 0,43 o’nli kasrga yaqinlashish xatoligini toping?

A) 1/500

B) 1/700

C) 1/600

D) 1/300

10 / 25

Hisoblang: $\sqrt{10}\cdot \sqrt{90}$

A) 30

B) 10

C) 20

D) 300

11 / 25

Rombning diagonallari 18 sm va 24 sm uning perimetrini toping

A) 50 sm

B) 40 sm

C) 60 sm

D) 30 sm

12 / 25

Tengsizlikning ikkala qismiga -10 ni qo’shing: 3,35<4,5

A) -6,65<-5,5

B) -6,65<5,5

C) 6,65<5,5

D) -6<-5

13 / 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

14 / 25

Tenglamalar sistemsini yechishning necha xil usuli bor.

A) 3 xil

B) 1 xil

C) 2 xil

D) 4 xil

15 / 25

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

A) (1;11)

B) (3;5)

C) (2;10)

D) (-1;4)

16 / 25

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

A) 35

B) 18

C) 20

D) 19

17 / 25

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

A) 3

B) 19

C) 20

D) 21

18 / 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) 18

D) 23

19 / 25

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

A) (0;5)

B) (-2;9)

C) (1;-3)

D) (3;-1)

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) -3

B) 2

C) 0

D) 1

21 / 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) 20

C) 36

D) 72

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) -4

D) 5

23 / 25

Tengsizlikni yeching:

A) x>-0,35

B) x<-15

C) x>15

D) x>0,35

24 / 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) 900 so`m, 200 so`m

C) 950 so`m, 150 so`m

D) 750 so`m, 350 so`m

25 / 25

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