3,104* +1,81* yig’indi quyidagi sonlarning qaysi biriga teng?

1. 
   3,104* +1,81* yig’indi quyidagi sonlarning qaysi biriga teng?
   

1. 
   2.1204* B) 4.914* C) 3.285* D) 4.914*
   

2. 
   m =18 va k=20 bo’lib, m,n va k natural sonlar bo’lsa, n ni toping?
   

1. 
   3 B) 5 C) 4 D) 2
   

3. 
   kasrni qisqartiring
   

A) B) C) D)
4. Uchburchakning tomonlari 4, 5 va 6 sm ga teng. 4 sm li tomonning 6 sm li tomondagi proyeksiyasini toping?
A) B) C) D)
5.Quyida keltirilgan tengliklardan qaysilari ayniyat emas?
1) (x+a)(x-b) = - (a-b)x – ab
2) (x-c)(x-d) = – (c-d)x + cd
3) (x-e)(x+d) = – (e-d)x – ed
4) 6ab+ (
5)
A)1, 2, 4 B) 1, 3, 4 C) 1, 2, 5 D) 2, 3, 5
6. va n<0 bo’lsa, quyidagilardan qaysi biri to’g’ri?
A)m+n<0 B)mn>0 C) D) m-n>0
7. Kasr maxrajini irratsionallikdan qutqaring:
A)3+ B) – 3 C) 3 - D) -
8. < tengsizlikni eng kichik butun yechimlarini ko’rsating?
A) 3 B) 6 C) 7 D) -3
9. -0.(44) ning teskarisiga qarama – qarshi bo’lgan sonning kvadrat ildizini toping?
A) 1,5 B) C) -1,5 D)
10. Uchburchak ikki tomoninig nisbati 2:3 kabi. Uchinchi tomoning uzunligi 40 ga teng. Uchinchi tomon qarshisidagi burchak bissiktrisasi shu tomondan ajratgan katta qismining uzunligini toping?
A)24 B)25 C)15 D) 22
11. AN ABC uchburchakning bissiktrisasi. Agar AB=AN bo’lsa va bo’lsa, B burchak necha gradusga teng?
A) 40 B) 50 C) 60 D) 70
12. ayniyatga ko’ra a+b+c ni toping?
A) -1 B) 1 C) 2 D) -3
13. ifodada a, b va c lar natural sonlar. Quyidagilardan qaysi biri doimo to’g’ri?
A) a juft son B) a toq son C) b va c toq sonlar D) b va c juft sonlar
14. sonini 24 ga bo’lganda qoldiq qanday bo’ladi?
A) 1 B) 3 C) 15 D) 23
15. Tengsizlikni yeching.

1. 
   B) C) D)
   

16. + ifodani soddalashtiring.
A) 5 B) 6 C) 4 D) 7
17. soddalashtiring.
A) B) C) 2 D) 0
18. tengsizliklar sistemasini yeching.
A) B) C) Echimga ega emas D)
19. ni hisoblang.
A) 10001000 B) 1001000 C)1001011000 D) 1000001000
20. Tomonlari 11, 12 va 13 ga teng bo’lgan uchburchakning katta tomoniga tushirilgan medianasi uzunligini toping?
A) 10 B) 9 C) 8,5 D) 9.5
21. ABC uchburchakning A burchagi bissiktrisasi BC tomonni uzunliklari 14 va 10 ga teng bo’lgan kesmaga ajratadi. Agar AC-AB=4 bo’lsa, ABC uchburchakning perimetrini toping?
A) 49 B) 48 C) 50 D) 42
22. 262728293031…….xy sonning raqamlari yig’indisi 422 bo’lsa, x+y=?
A) 9 B) 8 C) 10 D) 12
23. k ning qanday qiymatlarida tenglama ikkita manfiy ildizga ega bo’ladi?
A) B) C) D)
24. tenglama m ning qanday eng kichik butun musbat qiymatida ikkita turli haqiqiy ildizga ega bo’ladi?
A) 1 B) 3 C) 2 D)
25. Tengsizliklar sistemasi butun yechimlarining yig’indisini toping?

1. 
   2 B) 3 C)-1 D) -3