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9-sinf Matematika 2-chorak

InfoMaster

Aprel 15, 2021

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9-sinf Matematika 2-chorak

Testni Salomov Sardor tayyorladi.

1 / 25

Uchburchak medianalari uchun noto’g’ri tasdiqni ko’rsating

A) Har biri uchburchakni ikkita tengdosh qismga ajratadi

B) Bir – biriga teng

C) Kesishish nuqtasida 2:1 nisbatda bo’linadi

D) Bir nuqtada kesishadi

2 / 25

Ifodani soddalashtiring:
(13x²-8xy-y² )+( -11x² -9xy+y²)

A) 2x² -17xy

B) x² -xy

C) 17xy

D) 2x²

3 / 25

Agar 90^°° bo’lsa, quyidagilardan qaysi biri musbat

A) cosa

B) ctga

C) tga

D) sina

4 / 25

Hisoblang:

A) 5,76

B) 2,4

C) 24

D) 3,4

5 / 25

Sonlarni o’sish tartibida joylashtiring

A) b<a<c

B) c>a>b

C) c<a<b

D) a<b<c

6 / 25

Hisoblang

A) 2/1

B) 55/88

C) 1

D) -1

7 / 25

Proporsiyaning noma’lum hadini toping

A) 14/11

B) 1

C) 7/11

D) 2

8 / 25

Hisoblang

A) √7

B) √2

C) √23

D) √589

9 / 25

Funksiyaning aniqlanish sohasini toping

A) x≥ 1

B) (-∞;+∞ )

C) x≠1

D) x≤1

10 / 25

Sonlarni taqqoslang

A) a = b + 0,5

B) b<a

C) b=a+0,8

D) b=a

11 / 25

Ikkita gomotetik ko’pburchak uchun to’g’ri tasdiqni ko’rsating

A) To’g’ri javob yo’q

B) Ular teng

C) Ular tengdosh

D) Ular o’xshash

12 / 25

Funksiyaning eng kichik qiymatini toping:
y = x² + 4x + 5

A) 5

B) 1

C) 9

D) 3

13 / 25

AB va CD kesmalar O nuqtada kesishadi, AO = 12m, BO = 3 sm, CO = 28 sm, DO = 7 sm bo`lsa, AOC va BOD uchburchaklar yuzlari nisbatini toping

A) 12

B) 9

C) 16

D) 4

14 / 25

Kvadrat tengsizlikni yeching: x² – 4x +6 > 0

A) (-∞;1) U (6; ∞)

B) to'g'ri javob yo`q

C) (2; 3)

D) (-4; 6)

15 / 25

y = 4x² +12x +9 funksiyaning o`sish oralig`ini toping

A) (-∞; -1,5)

B) (1,5; ∞)

C) (-1,5; ∞)

D) (-∞; 1,5)

16 / 25

Teng yonli trapetsiyaning ikkita burchagi ayirmasi 40⁰ ga teng. uning burchaklarini toping

A) 115° ; 75° ; 115° ; 75°

B) 110°; 70°; 110°; 70°

C) 140°; 40°; 140°; 40°

D) 135°; 45°; 135°; 45°

17 / 25

y = x² +x -6 funksiya x ning qanday qiymatlarida manfiy qiymatlar qabul qiladi

A) (-∞;1) U (6; ∞)

B) (-3; 2)

C) (2; 3)

D) (-∞;2) U (3; ∞)

18 / 25

Parabola uchining koordinatalarini toping:
y =(x-3)²+2

A) (3; 2)

B) (3; -2)

C) (-3; - 2)

D) (-3; 2)

19 / 25

Berilgan uchburchak tomonlari 21 sm, 27 sm va 32 sm. Agar perimetri 120 sm bo`lgan uchburchak berilgan uchburchakka o`xshash bo`lsa, uning eng katta tomonini toping

A) 42 sm

B) 48 sm

C) 31,5 sm

D) 40,5 sm

20 / 25

x = 41 qiymat qaysi tengsizlikning yechimi bo`ladi

A) (x-30)(x-34) < 0

B) (x - 29)(x - 31) > 0

C) (x-7)(x-2010) > 0

D) (x +1)(x + 42) < 0

21 / 25

4x² + 4x +1 ≤0 tengsizlikni yeching

A) x = - 1/2

B) (-∞; -1)U(4;∞)

C) (- ∞; ∞)

D) (-∞; -1/2)

22 / 25

Quyidagi funksiyalardan qaysi biri kvadrat funksiya bo`ladi ?

A) y = 2x -3

B) y = 5x⁴ + 6x

C) y = 3x² + x³ – 8

D) y = 2010x² + 41x + 9

23 / 25

x² + 8x+15 ≤ 0 tengsizlikning butun yechimlari yig`indisini toping

A) -4

B) 23

C) -12

D) 12

24 / 25

Ikkita o`xshash ABC va DEF uchburchaklar berilgan. Agar S_ABC = 75 m² ,
S_DEF = 675 m² va ABC uchburchakning bir tomoni 5 m bo`lsa, DEF uchburchakning unga mos tomonini toping

A) 45 m

B) 10 m

C) 25 m

D) 15 m

25 / 25

Tengsizlikni yeching: (x – 6)(x – 13) <0

A) (-13; -6)

B) (6;13)

C) (-∞;-13) U (6; ∞)

D) (-∞;6) U (13; ∞)