9-sinf Tarix

9-sinf Algebra

1. 
   Kvadrat tenglamani yeching. x²+x-6=0
   

A.x₁=-3 x₂=2 B. x₁=3 x₂=-2 C. x₁=-2 x₂=-3 D.x_1,2=+3

2. 
   To`g`ri tortburchakning perimetri 30m ga yuzi 56m² ga teng Uning bo`yi enidan necha metr uzun?
   

A.1.2m B.1m C.2m D.2.5m
3. - 2 bo`lganda y = x<sup>2</sup> -4x -5 funksiyaning qiymatini toping?
a) 7 B) -17 C) -1 D) -2
4.Ikki xonali sonning raqamlari yig`indisi 9ga teng .Shu raqamlar bilan teskari tartibda yozilgan son berilgan sondan 27 ta ortiq Berilgan sonni toping.
A.72 B.36 C.45 D.81
5. Tengsizlikni yeching (x - 2) (x + 4) > 0
A) x >2 x> - 4 B) x>2 x< -4 C) x<2 x< -4 D) x<-2 x>4
6. Hisoblang. 2³ + (- 3)² – (-2)² + (-1)⁵
A) 14 B) 13 C) 12 D)-1
7. Tenglamani yeching 2x⁶ = 128
A) 2 B) 4 C) 8 D) 64
8. Hisoblang:
A) 3 B) C) D)

9. Tenglamani yeching: 3^x = 27

A) 27 B) 3 C) 9 D) 1
10. funksiyaning aniqlanish sohasini toping?
A) x = 2 B) x = -2 C) x D)
11. = 2 tenglamani yeching?
A) 3 B) 4 C) 1 D) -3
12. 40⁰ burchakning radian o`lchovini toping?
A) B) C) D) 4
13. Ifodani soddalashtiring?
A) cos ² B) sin² C) 1 + sin² D) tg
14. Hisoblang: sin 180⁰ + 2 cos 90⁰
A) 0 B) 1 C) -1 D)
15. Parabola uchining koordinatalarini toping? y = x² - 4x -5
A) (-2;-9) B) (2;9) C) (2; -9) D) (0;9)

16. Tenglamani yeching?

A. 2 B. -2 C. D.
17. ABC uchburchak AC=8 sm , AB = 12 sm bo`lsa uchburchak yuzini toping?
A) 12 B) 25 C) 13 D) 24
18. Uchburchakning bir burchagi 30⁰ ga teng. Uning qarshisidagi tomoni 4,8 dm. Uchburchakka tashqi chizilgan aylana radiusini toping?
19. Uchburchakning uchta tomoni ma`lum bo`lsa, qaysi teoremadan foydalanib uning burchaklarini toppish mumkin?
20. Uchburchak yuzini burchak sinusi orqali hisoblash formulasini yozing?
21. Tomonlai 2; 2 va 2,5 bo`lgan uchburchak turini aniqlang?
22. cos (180⁰ - α) =
23. Ikkita gomotetik ko`pburchak uchun to`g`ri tasdiqni ayting?
24. O`ttizburchakning burchaklari yig`indisini toping?
25. Teng yonli trapetsiyaning perimetri 36 sm o`rta chizig`I 10 sm. Yon tomoninng uzunligini toping?

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9-sinf Algebra masalalar

1.Ifodani soddalashtiring.

2.Agar parabolaning (-1;6) nuqta orqali o`tishi va uning uchi(1;2)nuqta ekani ma`lum bo`lsa parabolaning tenglamasini yozing.

3.Ikkita nasos bir vaqtda ishlaganda hovuz 2 soat 55minutda tozalanadi.Agar ulardan biri bu ishni ikkinchisiga qaraganda 2soat tezroq bajarsa har bir nasos alohida ishlaganda hovuzni qancha vaqtda tozalash mumkin.
4.Perimetri 84sm bo`lgan uchburchakning bir tomoniga parallel qilib o`tkazilgan to`gri chiziq undan perimetri 42sm ga va yuzi 26sm<sup>2</sup> ga teng uchburchak ajratdi.Berigan uchburchak yuzini toping.
5.To`g`ri to`rtburchakning ikkita qo`shni tomoni o`rtalarini tutashtiruvchi kesma diagonallaridan biriga parallel ekanini isbot qiling.agar to`g`ri tortburchakning dioganali 12sm gat eng bo`lsa bu kesma uzunligini toping.