Matematika 5

Ekspert a’zolari:

1. 35-maktab o’qituvchisi: Toirova Dilbar

2. 1-maktab o’qituvchisi: X. O’rinova

3. 34-maktab o’qituvchisi: D. Toirov

Bilimlar bellashuvi – 2013. Matematika - 8. Test. II variant
1. Ushbu m = 0,55(57); n = 0,5(557); l = 0,555(7) sonlarini kamayish tartibida yozing.

A) l > m > n; B) l> n > m; C) m > n > l; D) n > l > m; E) n > m > l.

2. Ifodani soddalashtirgandan keyin nechta haddan iborat bo’ladi?

( y ³ – 1 ) + ( y ² + 1 ) ( y ⁴ – y ² + 1 ).

A) 4; B) 5; C) 6; D) 3; E) 2.

3. ABCD trapetsiyaning o’rta chizig’i uni o’rta chiziqlari 13 va 17 bo’lgan ikkita trapetsiyaga

ajratadi. ABCD trapetsiyaning katta asosini toping.

A) 19; B) 21; C) 18; D) 30; E) 23.

4. Parallelogrammning burchaklaridan biri ikkinchisidan uch marta katta. Perallelogrammning katta

burchagini toping.

A) 105⁰; B) 110⁰; C) 120⁰; D) 135⁰; E) 150⁰.

5. Ko’paytuvchilarga ajrating: (x ²+ 9 ) ² – 36x ².

A) ( x ² – 5 )( x ² + 4); B) ( x – 3 )²· ( x + 3 )²; C) ( x – 6 )² · ( x + 6 )²;

D) x ² ( x ² – 6 ); E) ( x ² – 3 ) · ( x + 3 ).

6. Soddalashtiring :

A) ; B) ; C) ; D) ; E) .

7. Tenglamani yeching :

A) 1 ; B) 1 ; C) 1 ; D) 1 ; E) 1 .

8. y = 2x + 1 va y = – 2 – x funksiyalarning grafiklari qaysi koordinatalar choragida kesishadi?

A) I; B) II; C) III; D) IV; E) kesishmaydi.

9. Teng yonli uchburchakning uchidagi tashqi burchagi o’sha uchdagi ichki burchagidan 4 marta katta.

Uchburchakning asosidagi tashqi burchagi necha gradus?

A) 100; B) 102; C) 96; D) 108; E) 104.

10. Uchburchakning o’rtalarini tutashtirib, perimetri 65 m ga teng bo’lgan uchburchak hosil qilindi.

Berilgan uchburchakning perimetrini toping.

A) 32,5 m; B) 260 m; C) 75 m; D) 195 m; E) 130 m.

11. To’g’ri to’rtburchakka diagonal o’tkazish tatijasida u to’rtta uchburchakka ajratildi. Shu

uchburchaklardan birining yuzi 27 sm² ga teng . To’g’ri to’rtburchakning yuzini toping.

A) 112 sm²; B) 108 sm²; C) 111 sm² ; D) 96 sm²; E) 102 sm².
12. To’g’ri to’rtburchak shaklidagi maydonning eni 32 m. Agar shu maydonning yuzi 2 gektar bo’lsa,

uning bo’yi necha metr bo’ladi?

A) 610 m; B) 615 m; C) 620 m; D) 625 m; E) 630 m.

13. 420 va 156 sonlarining umumiy bo’luvchilari nechta?

A) 7; B) 5; C) 6; D) 4; E) 8.

14. Hisoblang: 0,8 + 0,2 : .

A) 0; B)1; C) 1,6; D) – 0,6; E) – 1 .
15. Quyidagi sonlarning qaysi jufti tenglamalar sistemasini qanoatlantiradi?

A) ( 4; 3) ; B) ( 1; 6 ); C) ( 2; 5 ); D) (5; 2); E) (3; 4).

16. tengsizlikning butun sonlardan iborat yechimlaridan eng kattasini

ko’rsating.

A) 2; B) – 1; C) 1; D) 0; E) – 2.

17. Tengsizliklar sistemasining eng katta va eng kichik butun yechimlari yig’indisini toping:

A) 17; B) 16; C) 18; D) 19; E) 15.

18. Quyidagi nuqtalarning qaysi biri f(x) = – 4x + 3 funksiyaning grafigiga tegishli?

A) ( - 1; 1); B) ( 2; 5 ); C) ( - 5; 2 ); D) ( 1; - 1); E) ( 0; - 3 ) .

19. Turist butun yo’lning 0,35 qismini o’tganda , unga, yo’lnng yarmigacha 18,3 km qolgani ma’lum

bo’ldi. Butun yo’lning uzunligini toping.

20. ( x; y) sonlar jufti sistmaning yechimi bolsa, x + y ni toping.

21. O’lchamlari 24 m X 15 m bo’lgan zalni tomoni 20 sm bo’lgan kvadrat shaklidagi plitkalardan nechtasi

bilan qoplash mumkin?

22. Harakat boshlangandan 0,8 soat o’tgach, mototsiklchi velosipedchini quvib yetdi. Mototsiklchining

tezligi 42 km/soat , velosipedchiniki 12 km/soat bo’lsa, harakat boshlanishidan avval ular orasidagi

masofa qancha bo’lgan ?

23. Ikki sonning ayirmasi 5 ga teng . Agar shu sonlardan kattasining 20 % i ikkinchisining siga teng

bo’lsa, shu sonlarni toping.

24. O’ziga qo’shni burchakning qismiga teng burchakni toping.

25. Teng yonli trapetsiyaning perimetri 36 sm, o’rta chizig’i 10 sm. Yon tomonining uzunligini toping.

Ekspert a’zolari:

1. 35-maktab o’qituvchisi: Toirova Dilbar

2. 1-maktab o’qituvchisi: X. O’rinova

3. 34-maktab o’qituvchisi: D. Toirov