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9-sinf Matematika 2-chorak

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Aprel 15, 2021

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9-sinf Matematika 2-chorak

Testni Salomov Sardor tayyorladi.

1 / 25

Sonlarni taqqoslang

A) b=a

B) b=a+0,8

C) a = b + 0,5

D) b<a

2 / 25

x= -2 da y=2x² +5x-3 funksiyaning qiymatini toping

A) 0,5

B) -5

C) 5

D) -4

3 / 25

Proporsiyaning noma’lum hadini toping

A) 7/11

B) 2

C) 1

D) 14/11

4 / 25

Sonlarni o’sish tartibida joylashtiring

A) a<b<c

B) b<a<c

C) c<a<b

D) c>a>b

5 / 25

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

A) Ular tengdosh

B) To’g’ri javob yo’q

C) Ular teng

D) Ular o’xshash

6 / 25

Tenglamaning musbat ildizini toping

A) 9

B) 32

C) 64

D) 45

7 / 25

tg60^° ni toping

A) 1

B) √2

C) √3

D) √2/2

8 / 25

Funksiyaning aniqlanish sohasini toping: y=4x²+5

A) (5/4;+∞)

B) (-∞,+∞)

C) (0;5/4)

D) (1;2)

9 / 25

Hisoblang

A) 55/88

B) 1

C) 2/1

D) -1

10 / 25

Hisoblang

A) √23

B) √2

C) √7

D) √589

11 / 25

Hisoblang:

A) 2,4

B) 5,76

C) 3,4

D) 24

12 / 25

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

A) Bir – biriga teng

B) Kesishish nuqtasida 2:1 nisbatda bo’linadi

C) Har biri uchburchakni ikkita tengdosh qismga ajratadi

D) Bir nuqtada kesishadi

13 / 25

Tengsizlikni yeching: (x + 4)(x + 9) >0

A) (-∞; -9) U (-4; ∞)

B) (-9; -4)

C) (-∞;4) U (9; ∞)

D) (4; 9)

14 / 25

Kvadrat tengsizlikni yeching:
3x² – 5x -2 > 0

A) (-∞; -1/3 ) U ( 2; ∞)

B) (-∞; 1/3 ) U ( 2; ∞)

C) (1/3 ; 2)

D) (-1/3 ; 2)

15 / 25

y = -2x² +6 funksiyaning grafigi qaysi koordinata choraklarida joylashgan ?

A) I, II, III, IV

B) I, III, IV

C) III, IV

D) I, II

16 / 25

Quyidagi funksiyalardan qaysi biri kvadrat funksiya bo`ladi ?

A) y = 2010x² + 41x + 9

B) y = 3x² + x³ – 8

C) y = 5x⁴ + 6x

D) y = 2x -3

17 / 25

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

A) (-∞;1) U (6; ∞)

B) (2; 3)

C) to'g'ri javob yo`q

D) (-4; 6)

18 / 25

To`rtburchak shaklidagi paxta maydoni xaritada yuzi 12 sm² bo`lgan to`rtburchak bilan tasvirlanadi. Agar xarita masshtabi
1: 5000 bo`lsa, maydonning haqiqiy yuzini toping

A) 2 ga

B) 3 ga

C) 0,6 ga

D) 2,4 ga

19 / 25

p ning nechta butun qiymatida
x² + px +4 = 0 tenglama haqiqiy ildizga ega emas

A) 7

B) 4

C) 9

D) 16

20 / 25

x = 41 qiymat qaysi tengsizlikning yechimi bo`ladi

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

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

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

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

21 / 25

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

A) 5

B) 1

C) 9

D) 3

22 / 25

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

A) -12

B) 12

C) 23

D) -4

23 / 25

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

A) (6;13)

B) (-∞;-13) U (6; ∞)

C) (-13; -6)

D) (-∞;6) U (13; ∞)

24 / 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; ∞)

25 / 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) 31,5 sm

B) 42 sm

C) 40,5 sm

D) 48 sm