1. 7va a sonlarining ekuki va ekubining ko’paytmasi 126 ga teng bo’lsa, a ni toping


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TEST
1. 7va a sonlarining EKUKi va EKUBining ko’paytmasi 126 ga teng bo’lsa, a ni toping.
A)18 B)8 C)7 D)36
2.Qo’shni burchaklardan biri ikkinchisidan 46 ga katta bo’lsa, shu burchaklardan kattasini toping.
A)113 B)115 C)103 D)117
3 .x2-5x+q=0 tenglamaning ildizlaridan biri 6 ga teng. Bu tenglamaning koffitsientlari yig’indisini toping.
A) 2 B) -10 C) -11 D) 1
4. tengsizlikning butun sonlardan iborat yechimlaridan eng kattasini ko’rsating.
A)2 B)-1 C)1 D)0 E) -2
5. ax+by=6
bx+ay=4 tenglamalar sistemasi x=3 va y=2 yechimga ega bo’lsa, a ning qiymatini toping.
A)5 B)4 C)2 D)3
6. Tengsizliklar sistemasi nechta butun yechimga ega?
3-4x>5
2+ 3(x-1)
A) 1 B) 2 C) 4 D) 6 D) 3
7. Quyidagi 5A) 8 B) 10 C) 12 D) 6 E) 14
8. Tengsizlikning barcha butun yechimlari yig’indisini toping.
(x-1)(x+1)2(x-3)3(x-4)4
A) 6 B) 7 C) 8 D) 9 E) 11
9. Funksiyaning aniqlanish sohasini toping
y=
A) (-1;1) B) (-1;1) C) (-1;2) D) (- ) E) (- )
10. 312 va 12 sonlarining umumiy bo’luvchilari nechta?
A)2 B)4 C) 3 D)6
11. k ning qanday qiymatida k(k+6)x=k+7(x- ) tenglama yechimga ega bo’lmaydi?
A) -7 va 1 B)-7 C)1 D)7
12. Bambuk daraxti 1 sutkada 86,4 sm o’sadi, u 1 sekundda qancha o’sadi?
A) 0,01m B) 0,01mm C) 0,01sm D) 0,1sm
13. Yig’indining oxirgi raqamini toping.
15
A) 4 B)9 C) 0 D) 5
14. 639 sonini 2:3:4 kabi nisbatda bo’ling.
A) 142;215;282 B) 142;213;284
C) 171;239;259 D) 171;142;326
15. a+b+c=0 bo’lsa b2-c2+a(a+2b)=?
A)0 B)ab C)bc D)ac
16. (2x-1)2(x-2)4(x+3)6(x+4)8 0 tengsizlik nechta butun yechimga ega?
A) B) 4ta C) 3ta D)Cheksiz ko’p
17. 5 ni soddalashtiring.
A) B) C) a D)
18. Tenglamaning ildizlari yig’indisini toping.
|x+3|+|x+1|+|x-4|=6

  1. Ildizi yo’q B)0 C) -4 D)1 E) -2

19. Yig’indini toping.
4-7+8-11+12-15+………..+96-99
A) -75 B) -80 C) -72 D) -63
20. To’g’ri to’rtburchakning tomonlari 72m va 8m. Unga tengdosh bo’lgan kvadratning tomonini toping.
A) 36 B) 28 C) 24 D)18
21. a=4-3 bo’lsa quyidagilardan qaysi biri ratsional son bo’ladi.
A) 3a2 B) a2-8a C) (a-3)(5-a) D) a2+12a
22. Soatning minut mili 9 minutda necha gradusga buriladi?
A)15 B)30 C)25 D) 54
23. (x2 +3x)2<16 tengsizlikni yeching.
A)(-1;4) B)(-4;1) C)(-2;3) D)(-3;2) E)(-2;1) (2;3)
24. Tengsizlikni yeching.
|x| (x- )<0

  1. (- ) B) (0; ) C) (- ) D) (- ) )

E) )
25. 2,(3)+5 ni hisoblang.
A) B) 8 C) 7 D) 9
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