8-sinf Matematika 4-chorak №2

Yaratilgan sanasi May 18, 2021 tomonidan InfoMaster

8-sinf Matematika 4-chorak

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1 / 25

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

A) 19

B) 18

C) 35

D) 20

2 / 25

Tenglamani yeching $x^{4}-5x^{2}+4=0$

A) x₁,₂=±4 ,x₃,₄=1

B) x₁,₂=1 ,x₃,₄=±2

C) x₁,₂=±4 ,x₃,₄=-1

D) x₁,₂=±1 ,x₃,₄=±2

3 / 25

To‘g‘ri to‘rtburchakning bir tomoni 25 cm, ikkinchi tomoni esa undan 12 cm uzun. To‘g‘ri to‘rtburchakning yuzini toping.

A) 600

B) 925

C) 300

D) 1025

4 / 25

Parallelogrammning tomoni 16 cm ga, unga tushirilgan balandlik esa 9 cm ga teng. Shu parallelogrammga tengdosh kvadratning yuzini toping.

A) 144

B) 12

C) 225

D) 15

5 / 25

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

A) ø

B) x₁=2, x₂=0

C) x₁=-2, x₂=-2

D) x₁=-1, x₂=1

6 / 25

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

A) 50

B) 51

C) 41

D) 40

7 / 25

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

A) x₁=0, x₂=-1

B) x₁=1/3, x₂=1/4

C) x₁=-1/3, x₂=1/4

D) x₁=-1/3, x₂=-1/4

8 / 25

Parallelogrammning yuzi 36 $cm^{2}$ , a tamoniga tushurilgan balandliklari 3 cm . Shu parallelogrammning a tamonini toping.

A) 6

B) 12

C) 4

D) 3

9 / 25

Kvadratning tomoni 1.2 dm bo'lsauning yuzini toping $sm^{2}$ larda.

A) 14,2

B) 144

C) 2,44

D) 1,44

10 / 25

To‘g‘ri tasdiqni aniqlang

A) Agar а < 4, b < -5, bo‘lsa аb < 20

B) TJY

C) Agar а > -5, b > 7, bo‘lsa аb > 36

D) Agar а > 4, b > 6, bo‘lsa а + b < 9

11 / 25

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

A) 4

B) 3

C) 2

D) 5

12 / 25

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

A) 60 sm

B) 46 sm

C) 56 sm

D) 40 sm

13 / 25

5 : 13 sonini 0,001 gacha aniqlikdagi o’nli kasr ko’rinishida tasvirlang:

A) 0,835

B) 0,538

C) 0,853

D) 0,385

14 / 25

Ta'rifni to'ldiring. Ikala tamoni parallel, qolgan tamonlari parallel bo'lmagan to'rtburchak .... deb ataladi.

A) kvadrat

B) romb

C) parallelogramm

D) trapetsiya

15 / 25

Qanday vetorlar qarama-qarshi vektorlar deyiladi?

A) Bo'linmasi nolga teng bo'lgan vektorlar

B) Ayirmasi nolga teng bo'lgan vektorlar

C) Ko'paytmasi nolga teng bo'lgan vektorlar

D) Yig'indisi nolga teng bo'lgan vektorlar

16 / 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=-1

D) x=-2

17 / 25

$\vec{a}(2;4)$ va $\vec{b}(-1;4)$ berilgan bo'lsa $\vec{a}-\vec{b}$ vektorning kordinatalarini toping.

A) -3;-8

B) -3;0

C) 1;8

D) 3;0

18 / 25

Tenglamani yeching $x^{4}-4x^{2}-5=0$

A) x₁,₂=±√5 , x₃,₄=1

B) x₁,₂=1 , x₃,₄=-1

C) x₁,₂=±√5

D) x₁,₂=±5

19 / 25

Teng yonli trapetsiyaning diagonallari o‘zaro perpendikular va balandligi 8 cm ga teng. Shu trapetsiyaning yuzini toping.

A) 64

B) 45

C) 55

D) 36

20 / 25

Tenglamani yeching $x^{2}-11=0$

A) x₁,₂=±11

B) x₁,₂=±√11

C) x₁,₂=-11

D) x₁,₂=√11

21 / 25

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

A) x₁=1/3, x₂=-1/2

B) x₁=-1/3, x₂=1/2

C) x₁=1/3, x₂=1/2

D) x₁=0, x₂=-1

22 / 25

Hisoblang: $\sqrt{28-12}$

A) -4

B) 16

C) 3

D) 4

23 / 25

x ning qanday qiymatida funksiyaning qiymati 1 ga teng bo’ladi

A) 12/13

B) 17/8

C) 15/8

D) 16/10

24 / 25

106 ni kvadirati toping.

A) 1234

B) 1236

C) 11236

D) 11225

25 / 25

Tenglmalar sistemasini yeching

A) x=-4 , y=-1

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

C) x=-2 , y=1

D) x=1 , y=2

8-sinf Matematika 4-chorak №2

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Author: InfoMaster

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