1. Agar bo’lsa, ning qiymatini toping. A 110 b 125 c 80 d 100

10. yig’indi quyidagi sonlarning qaysi biriga teng?
A) B)
C) D)
11. ni hisoblang.
A) 0,43 B) – 0,43 C) – 4,3 D) 4,3
12. ni qiymatini toping.
A) 11/23 B) 27/11 C) 2/11 D) 11/25
13. a ning qanday qiymatlarida ax-3=a+2x tenglamaning yechimi bo’lmaydi?
A) 0 B) 2 C) -1 D) -2 E) hech bir qiymatida
14. k ning qanday qiymatlarida

tenglama cheksiz ko’p yechimga ega?
A) 3 ; 1 B) 1 C) 3 D)0 E) -1;-3

15. m ning qanday qiymatida x²+(2-m)x-m-3=0 tenglama ildizlari kvadratlarining yig’indisi eng kichik bo’ladi.

A) 2 B) 1 C) -1 D) -3 E) 0

16. n natural son n²x²+3n³x+4=0 tenglama ildizlarining o’rta arifmetigining o’rta geometrigiga nisbati -3 ga teng bo’lsa, n ning qiymatini toping.

A) 2 B) 1 C) 3 D) 4 E) 5
17. a va b ning qanday qiymatida tenglik ayniyat bo’ladi?

A) a=1; b=1 B) a=2/5, b=-2/5 C) a=5, b=-5 D) a=-2/5, b=2/5 E) a=-1/5, b=3/5
18. Tenglamalar sistemasi nechta yechimga ega?

A) 1 B) 2 C) 3 D) 4 E) yechimga ega emas
19. x₁ va x₂ tenglamaning ildizlari ekanligi ma’lum. ning qiymatini toping.
A) 12 B) – 10 C) 11 D) 28
20. ni hisoblang.
A) B) – 23 C) D)
21. ifodaning dagi qiymatini hisoblang.
A) – 26,875 B) C) 27,125 D) 27,5
22. _{ }soniga teskari sonni toping
A) _{ } B) _{ } C) _{ } D) 0,0(17)
23. _{ } raqamlar, _{ } va _{ } esa ikki xonali sonlar. Agar _{ } bo’lsa, y-x ning qiymati qanchaga teng bo’ladi.
A) 5 B) 6 C) 4 D) 7
24. Hisoblang: _{ }
A) _{ } B) 26953 C) 26549 D) 27553
25 . Hisoblang:

A) 0,1 B) _{ } C) _{ } D) 0,(1)
26. Teng yonli uchburchakning asosi 36 ga, uning asosiga tushirilgan balandligi esa asosi va yon tomonlarining o‘rtalarini tutashtiruvchi kesmaning uzunligiga teng. Berilgan
uchburchakning yuzini toping.
A) 162 B) C) D)
27. ABC uchburchakda medianalar kesishgan
nuqtadan AB tomongacha bo‘lgan masofa ga teng. Agar AB = 8 bo‘lsa, ABC uchburchakning yuzini toping.
A) 12 B) 16 C) 9 D) 13
28. To‘g‘ri burchakli uchburchakka ichki chizilgan aylananing urinish nuqtasi gipotenuzadan uzunliklari 6 va 9 ga teng kesmalar ajratadi. Uchburchakning yuzini toping.
A) 54 B) 48 C) 30 D) 36