Matematika 1-variant

Matematika 6-variant

1. Sonlar ketma-ketligidagi keyingi sonni toping: 0; 1; 5; 14; 30; …

A) 46 B) 50 C) 55 D) 60
2. proporsiyadan x ni toping
A) 44/17 B) 45/16 C) 3 D) 44/5
3. 40% i 12 ga teng bo`lgan sonni toping
A) 52 B) 30 C) 24 D) 18
4.  ni 8 ga bo`lgandagi qoldiqni toping
A) 2 B) 3 C) 4 D) 1

5. Institutdagi talabalarning 35% ini qizlar tashkil qiladi . Yigitlar qizlardan 252

taga ko’p. Talabalarning umumiy sonini toping.
A) 820 B) 420 C) 720 D) 840
6. Hisoblang. 
A) 3 B)1 C) 0 D) – 2
7. Tenlamalar sistemasini yeching. 
A)  B)  C)  D) 
8. Hisoblang. 
A) 1 B) 10 C) 4 D) 
9. 2,2 ga teskari bo`lgan sonni toping.
А)  B)  C) -2,2 D) 1
10. Soddalashtiring.  A)  B)  C)  D) 1

11. Hisoblang. 15,5 + 7,5:1,5 – 0,5

A) 2,5 B) 15 C) 20 D) 1,3
12.  soddalashtiring. A)1 B) x+ y C) -1 D) 2x
13. Tenglamani yeching.  A)4 B)  C)  D) 
14. P(x)=x⁵–4x³+2x²-3 ko’phadni D(x)=x – 1 ga bo’lgandagi qoldiqni toping?
A) -4 B) -6 C) 4 D) 5

15. Hisoblang.

A) 27 B) 2 C) 7 D) 8

16. (0.02)³ : (0.5)⁴ ∙ 5⁶ ifodaning qiymatini toping? A)  B)10 C)8 D)2

17. Maxrajni irratsionaldan qutqaring.
A) + ; B) 4( - ); C) ( - ); D)1

18. Ko’paytuvchilarga ajrating : 

A) a(a+12) B) ( )(a - 2)
C) a(a-1)(a+2) D) (a+3)(a-2)

19.  ko`phad quydagilarning qaysi biriga bo`linmaydi?

20. Dastlabki 30 ta natural sonlar ichida 6 soni bilan o'zaro tub bo'lgan sonlar nechta?

21. Ifodani soddalashtiring. 

22. 3,3; x va -2,1 sonlarining o’rta arifmetigi 0,6 ga teng. x ni toping.

A) -0,6 B) 0,6 C) 2 D) 0,8

23. 2x(x – 1) – (2x+1)(x – 2) ko’phadni standart shaklga keltiring.

A) 2x²-3x B) 4x²-1 C) –x+1 D) x+2

24. Tenglamani yeching. 4(2x - 1) +3 = 15+2(1+x);

A) 2; B) 6; C) -2; D) 3;

25. Natural sonni 18 ga bo’lganda, bo’linma 19 ga, qoldiq 8 ga teng bo’ldi. Bo’linuvchini toping.

A) 243 B) 263 C) 273 D) 350