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8-sinf Matematika 4-chorak

InfoMaster

May 5, 2021

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8-sinf Matematika 4-chorak

Testni Shirinboyev Temur tayyorladi.

1 / 25

Asoslari 8 va 12 ga teng bo’lgan teng yonli trapetsiyaning diagonallari o’zaro perpendikulyar. Uning yuzini toping.

A) 144

B) 100

C) 76

D) 64

2 / 25

Teng tomonli uchburchakning balandligi 9 sm. Shu uchburchakka ichki chizilgan aylana radiusini toping.

A) 6

B) 3

C) 9

D) 0

3 / 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

4 / 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

5 / 25

(5;10)ni qo’sh tengsizlik ko’rinishida tasvirlang

A) 5<x <10

B) 510

C) T.J.Y

D) 5>x >10

6 / 25

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

A) 0,207

B) 0,702

C) 0,72

D) 0,703

7 / 25

Quyidagilardan qaysi biri chiziqli funksiyaga misol bo'ladi?

A) y=250

B) y=3x²

C) y=2x+5

D) y=2x²+3

8 / 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) 23

D) 18

9 / 25

Funksiya y=x+2 formula bilan berilgan bo'lsa, M(0;2) nuqta shu funksiyaga tegishlimi?

A) tegishli

B) tegishli emas

10 / 25

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

A) 1, 0, 0;

B) 0, 0, -2;

C) 1, 4, -2.

D) 1, 4, 0;

11 / 25

To'rtburchak tomonlari 6mm, 8mm, 10mm va 1sm ga teng. Shu to`rtburchakning perimetrini toping.

A) 25

B) 35

C) 34

D) 24

12 / 25

Tenglmalar sistemasini yeching.

A) x=1, y=2

B) x=2, y=-1

C) x=2, y=1

D) x=-2, y=1

13 / 25

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

A) x=-2

B) x=3

C) x=-1

D) x=1

14 / 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

15 / 25

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

A) x=-6

B) x=-7

C) x=7

D) x=6

16 / 25

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

A) 1/3; 1/2

B) 15/15

C) 1/2; 1/2

D) 15/8

17 / 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

18 / 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) 20

C) 26

D) 36

19 / 25

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

A) x=-3

B) x=-5

C) x=3

D) x=5

20 / 25

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