8-sinf Matematika 4-chorak №2

Yaratilgan sanasi May 18, 2021 tomonidan InfoMaster

8-sinf Matematika 4-chorak

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Ism

1 / 25

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

A) Kvadrat

B) Romb

C) Parallelogramm

D) Trapetsiya

2 / 25

Diagonallari 3,2 cm va 0,5 dm bo‘lgan rombning yuzini toping. $cm^{2}$ larda.

A) 0,8

B) 0,5

C) 1,6

D) 8

3 / 25

Tenglamani yeching: $3x^{2}=48$

A) x₁,₂=±√48/3

B) x₁,₂=±4

C) x₁,₂=4

D) x₁,₂=±√3/48

4 / 25

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

A) 0,5

B) 0,9

C) 0,8

D) 0,7

5 / 25

Kvadrat tenglamani yeching $12x^{2}+7x+1=0$

A) x₁=-1/3, x₂=-1/4

B) x₁=-1/3, x₂=1/4

C) x₁=0, x₂=-1

D) x₁=1/3, x₂=1/4

6 / 25

Tenglamalar sistemasini yeching

A) x=-4, y=-2

B) x=-6, y=-2

C) x=-3, y=-2

D) x=6, y=-2

7 / 25

Tenglamani yeching $x^{2}=25$

A) x₁,₂=-5

B) x₁,₂=±5

C) x₁,₂=5

D) x=5

8 / 25

Yuzi 144 sm² , balandliklari 8 sm va 12 sm bo’lgan paraleligramning perimetrini toping.

A) 46 sm

B) 40 sm

C) 60 sm

D) 56 sm

9 / 25

Tengsizlikni yeching: x + 4>3 – 2x

A) x>-1/3

B) x<1/3

C) x>3

D) x>1/3

10 / 25

Tenglmalar sistemasini yeching

A) x=-2 , y=1

B) (1;4) va (4;1)

C) x=-4 , y=-1

D) x=1 , y=2

11 / 25

Viktor deb nimaga qaytiladi?

A) Faqat son qiymati bilan aniqlanadigan kattalikka

B) Son qiymati va yo'nalishi bilan aniqlanadigan kattalikka

C) Faqat yo'nalish qiymati bilan aniqlanadigan kattalikka

D) Bunday tushuncha yo'q

12 / 25

Yuzi 400 $dm^{2}$ ga teng bo‘lgan kvadratning perimetrini toping.

A) 120

B) 160

C) 80

D) 100

13 / 25

Tenglamani yeching

A) x=√25

B) x₁,₂=±25

C) x=25

D) x=-25

14 / 25

Kvadrat tenglamani yeching $6x^{2}-5x+1=0$

A) x₁=0, x₂=-1

B) x₁=1/3, x₂=-1/2

C) x₁=-1/3, x₂=1/2

D) x₁=1/3, x₂=1/2

15 / 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

16 / 25

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

A) 18

B) 20

C) 35

D) 19

17 / 25

Tenglamani yeching $x^{2}=64$

A) x₁,₂=√64

B) x₁,₂=±8

C) x₁,₂=-8

D) x₁,₂=8

18 / 25

Ikki soning ayirmasi 3 ga, ularning ko`paytmasi 28 ga teng. Shu sonlarni toping

A) 5 va 2

B) 7 va 4

C) 17 va 14

D) 7 va 14

19 / 25

Rombning yuzi 164 $cm^{2}$ , diagonallaridan bin 8 cm ga teng. Shu rombning ikkinchi diagonalini toping.

A) 41

B) 40

C) 50

D) 51

20 / 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

21 / 25

Kvadrat tenglamani yeching $x^{2}+7x+6$ =0

A) x₁=-1, x₂=1

B) x₁=0, x₂=-2

C) ø

D) x₁=-6, x₂=-1

22 / 25

Kollinear vektorlar deb qanday vektorlarga aytiladi?

A) Yig'indisi nolga teng bo'lgan vektorlarga

B) Parallel to'g'ri chiziqda yoki to'g'ri chiqiqda yotuvchi ikki vektorga

C) Ko'paytmasi nolga teng bo'lgan vektorlarga

D) Faqat son qiymati bilan aniqlanadigan kattalikka

23 / 25

$\vec{a}(m;4)$ vektorning uzunligi 5 ga teng. m ni toping.

A) 2

B) 3

C) 4

D) 5

24 / 25

Tengsizlikni yeching:

4(x-1)+5(x+1)<6(x+2)+7(x-1)

A) x<-6

B) x<-1

C) x>1

D) x>-1

25 / 25

tengsizliklar sistemasining yechimi bo‘la olmaydigan sonni toping

A) 10

B) -1

C) 1

D) -12

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