sonlari uchun bo’lsa, a b -1 c d 2

1. sonlarining o’rta arifmetigi 10 ga, sonlarining o’rta arifmetigi esa 12 ga teng. U holda va sonlarining o’rta arifmetigi nechaga teng? A) 2 B) -2 C) -6 D) -3
2. sonlari uchun bo’lsa, A) 1 B) -1 C) D) 2
3. bo’lsa, sonining raqamlari yig’indisi nechaga teng? A) 9 B) 27 C) 18 D) 36
4. Maosh ketma-ket ikki marta 15% dan oshirildi. Buning natijasida maosh ja’mi necha foizga oshgan?
A) 35 B) 33 C) 32,25 D) 30
5. Qaysi javobda uchburchak yasash mumkin bo’lgan kesmalar uzunliklari keltirilgan? A) 2;6;4 B) 7;11;3 C) 14;6;7 D) 13;6;8
6. Uchburchakning ikkita tomoni 12 va 16 ga teng bo’lsa, uning yarim perimetri qaysi oraliqda joylashadi?
A) (14;28) B) (16;28) C) (14; 32) D) (16;32)
7. Shaxmat turnirida 30 ta ishtirokchi o’zaro bir partiyadan o’ynashdi. Jami nechta o’yin bo’lgan?
A) 900 B) 435 C) 450 D) 870
8. Uchburchakning asosiga tushirilgan balandligi qolgan tomonlari bilan va li burchak hosil qiladi, shu uchburchakning eng katta burchagini toping?
A) B) C) D)
9. Hisoblang.

A) 0 B) 1 C) -1 D) -
10. Ikkinchi, to`rtinchi va oltinchi hadlarining yeg`indisi -18 ga teng arifmetik progressiyaning to`rtinchi hadini toping.
A)6 B)-5 C)-6 D)-4
11. Agar bo`lsa, α burchak qaysi chorakka tegishli ?
A) I yoki II B) I yoki III C) I yoki IV D) II yoki III
12. Hisoblang:
A) B) C) D)
13. Tenglama nechta ildizga ega? =0
A) 4 B) 2 C) 1 D) 0
14. t ning qaday qiymatlarida tengsizlik ning barcha qiymatlarida o’rinli bo’ladi?
A) B)
C) D)
15. tenglamani yeching?
A) B) C) D) -1,2
16. ni hisoblang?
A) -0,7 B) 0,7 C) 1,1 D)-1,1
17. Uchburchakning ikki tomoni uzunliklari 15 va 8sm ga teng uchinchi tomoni butun son bo’lsa bunday uchburchaklardan nechta bor?
A)15 B)16 C)17 D)18
18. To’g’ri burchakli uchburchakning gipotenuzasi 50 ga, katta katetning gipotenuzadagi proyeksiyasi 32 ga teng.Uchburchakning yuzini toping.
A)600 B)1200 C)300 D)224
19. Parallelogramning tomonlari 14 va 18 ga, balandligi esa 16 ga teng bo’lsa, parallelogramning yuzini toping.
A) 224 B) 288 C) 144 D) 512

20. bunda bo’lsa, ni toping.

A) B) C) D)