2015-yilning variantlari Matematika (Informatika) javoblari bilan

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36. Telegraf kodini ishlab chiqqan inson nomini

aniqlang.

A) Paskal B) Sezar C) Lisandro D) Morze

VARIANT № 103

1. Diognallari 30 va 40 ga teng bo’lgan rombning tomonini toping

A) 27 B) 21 C) 25 D) 23

2. Bir to'g'ri chiziqda ketma-ket yotuvchi A, B, C va D nuqtalar uchun AB = CD va BC = 12 ekanligi ma’lum. Bu to'g'ri chiziqda yotmaydigan E nuqtadan B va C nuqtalargacha bo'lgan masofa 10 ga teng. Agar AED uchubrchakning perimetri BEC uchburchakning perimetridan ikki marta katta bo'lsa, AB ni toping.

A) 8,5 B) 9 C) 8 D) 7.5

3 . a va b vektorlar o’zaro perpendikulyar birlik vektorlar bo’lsa, ni toping.

A)4 B) C)5 D)

4. tengsizlikni yeching

A) [0; 1,6]va[2,5; ] B ) ( 0; 1, 6 ) C)[0 ; 1,6] va [2; 5] D ) [0; 1,6]

5. tengsizlikni yeching.

A) x<3/4; 4-3/4 C) -4

6. tenglamani yeching.

A) 0,5 B ) 1,5 C) 1 D)2

7. tenglamani yeching.

A ) B) 3 C ) D) 1

8. Natural a sonni b ga bo’lganda bo’linma c va qoldiq d bo'lda Agar bo'linuvchi va bo'linma ikki marta ortsa, qoldiq qanday o'zgaradi?

A) 4 marta ortadi B ) 2 marta ortadi C) o’zgarmaydi D) 2 marta kamayadi

9. Nechta butun a va b sonlar jufti tenglikni qanoatlantiradi?

A) ∅ B) 1 C )4 D) 2

10. Teng yonli trapetsiyaning asoslari 4 va 12 bo'lsa, unga ichki chizilgan doira yuzini toping

A ) 12π B ) 8 π C ) I 6 π D ) 18 π

11. ni hisoblang.

A) B) C ) D )

12. ni hisoblang.

A) B) C) D)

13. Kutubxonada jami 3275 ta kitob bor. Jami kitoblaming 40% i badiy kitoblar, qolgan qismi darsliklar. Darsliklarning sonini toping.

A ) 1965 B ) 1970 C ) 1950 D ) 1967

14. Muntazam parallelepipedning balandligi asosining tomonidan marta katta. Parallelepipedning diagonali asos tekisligi bilan qanday burchak tashkil etadi?

A) B) 60° C) D) 30°

15. 4,6(6) soni marta orttirilgan bo’lsa, u qanchaga ortgan?

A) 6,3 B) 5,3 C) 6,(3) D) 5,(3)

16. -ctg ni hisoblang

A ) B) C) D)

17. ni hisoblang.

A) B) C ) D )

18. To'g’ri burchakli uchburchakning bir burchagi 38° ga teng bo’lsa, to’g’ri burchak uchidan tushirilgan bissektrisa va mediana orasidagi burchakni toping.

A) 10° B ) 7° C ) 14° D) 17°

19. Agar konus o’q kesimining yuzi N ga, asosining yuzi M gateng bo’lsa, konus yon sirtining yuzini toping.

A ) B ) C ) D )

20. tengsizlikni yeching.

A) R B ) ∅ C ) D)

21. , tenglamaning ildizlarini yig’indisini toping.

A) 3 B)4 C) 4,5 D)2

22. . O ’suvchi arifmetik progressiyaning dastlabki uchta hadi yig'indisi 20 ga teng. Bu hadlarga mos ravishda

1; 1; 5 qo’shilsa geometrik progressiya hosil boladi. Shu geometrik progressiyaning hadlarini toping

A) 4;8;6 B)4;12;36 C)3;6;12 D) 2;6;8

23. tengsizlikning yechimlari sohasini toping.

A) (-∞;-1) va (6 ;∞) B) -3; 3 C) (-∞; 3) D) (6 ; ∞)

24. ,

A) B) C) D)

25. Radiusi r bo’lgan aylananing parallel vatarlari uning radiusining 1,2 qismiga teng. Vatarlar orasidagi masofani toping.

A) r B) r C ) r D) r

26. ifodaning qivmatini toping.

A) 3¹⁶ ∙2⁸ B ) 3¹³ ∙2⁸ C) 3¹⁹ ∙2⁸ D) 3²⁰ ∙2⁸

27. funksiyaning aniqlanish sohasini toping.

A)x≥1/2 B) x≤-1/2; x≥1/2 C)x=1/2 D)x≤-1/2

28. tengsizlikni yeching.

A)29 C)2/3≤x<4 D) 2/3≤x<4 , x>9

29. hisoblanag

A) 980 B) 625 C) 1 D) 825

30. bo’lsa. P(x) ni topng.

A B) C ) D ) +1

31. Tcxnik vositalarga boshqarish va ma’lumotlarni qayta ishlashning barcha funksiyalari inson ishtirokisiz amalga oshiriladigan axborot tizimlari bu. ..

A) Mexanik axborot tizimlari B ) Avtomatik axborot tizimlari C) Qo’llik axborot tizimlari

D) Avtomatlashtirilgan axborot tizimlari

32. Barcha a ,b∈ R uchun mantiqiy ifoda qiymatini aniqlang:

A) Mantiqiy ifoda xato yozilgan. B) Sodda mulohazalardan ba’zilarini qiymatini aniqlab bo’lmaydi.

C) Yolg’on D) Rost

33. Turli sanoq sistemalarida berilgan sonlar yig'indisini aniqlang. 2566₍₈₎ +1201₍₁₀₎

A) 5043₍₈₎ B ) 2599₍₁₀₎ C) A23₍₁₆₎ D) 11000100111

34. MS Excel 2003 da quyidagilardan qaysi biri static funksiya emas?

A) CP3HAH B) MAKC C) CYM M D) MHH

35.HTML-hujjatida rasm joylashtiris tegi to’g’ri ko’rsatilgan qator aniqlang.

A) < html href =” fayl nomi” > B ) < img src =” fayl nomi” > C) < frame src =” fayl nomi"> D) < a href =” fayl nomi” >

36. Paskal tilida quyidagi dastur bajarilishi natijasida ekranga chiqariladigan axborotlami aniqlang:

Var k,b:integer; c:string; Begin K:=4; B:=5; C:=’21’;If k>b then write ( ‘C=’, C : l) else write ( ‘C=’, C:4); end.

A) C=2121 B) C=212 C) C=21 D) C=2