9 – sinf test I chorak I variant

9 – sinf TEST I CHORAK I variant

1. 
   Amallarni bajaring:
   

A) 61; B) 60 ; C) 61 ; D) 62.

2. 
   Proporsiyaning noma’lum hadini toping: 10,4 : 3 =x :
   

A) 1; B) 2; C) ; D) .

3. 
   Ifodaning qiymatini toping:
   

A) 121 ; B) 243; C) 241; D) 233 .

4. 
   Ifodani soddalashtiring: (13x²8xyy² )+( 11x² 9xy+y²)
   

A) 17xy; B) 2x² 17xy; C) 2x²; D) x² xy.

5. 
   Tenglamani yeching:
   

A) 1,03; B) 10; C) 1,3; D) 103.

6. 
   x= 2 da y=2x² +5x3 funksiyaning qiymatini toping:
   

A) 0,5; B) 5; C) 4; D) 5.

7. 
   Parabolaning koordinata o’qlari bilan kesishish nuqtalarining koordinata-larini toping: y=x²4x5
   

A) (0;-5); C) (0;-5), (-1;0), (5;0);
B) (0;-5), (1;0) D) (-1;0), (5;0).

8. 
   Parabola uchining koordinatalarini toping: y=x²+6x+5
   

A) (3;4); B) (-3;-4); C) (-3;4); D) (3;-4).

9. 
   y=x² 4x+6 parabola qaysi choraklarda joylashgan:
   

A) I, IV; B) II, III; C) I, II, III, IV; D) I, II.

10. 
    Ikki musbat sonning yig’indisi a ga teng. Agar shu sonlarning kvadratlari yig’indisi eng kichik bo’lsa, shu sonlarni toping:
    

A) B) a³, a; C) D)

11. 
    Tengsizlikni yeching: 2x² 80.
    

A) 0x4; B) -2x2; C) x-2; D) x-2.

12. 
    Tengsizlikni yeching: -x²+3x0.
    

A) x0, x3; B) x>3; C) x0; D) 0<x<3.

13. 
    Tengsizlikni yeching: (x+3)(x4)>0
    

A) x>4; B) x<3; C) 0<x<4; D) x<3, x>4.

14. 
    Tengsizlikni yeching: 4x²+8x3>0
    

A) x> B) x< ; C) <x<1,5; D) <x<1.

15. 
    Tengsizlikning barcha butun yechimlari yig’indisini toping: x²+6x+5<0
    

A) 10; B) 9; C) 9; D) 10.

16. 
    Rombning perimetri 68 sm, diagonallaridan biri 30 sm. Rombning yuzini toping.
    

A) 280 sm²; C) 480 sm²;
B) 240 sm²; D) 48 sm².

17. 
    Teng yonli trapetsiyaning asoslari 8 sm va 16 sm. Yon tomoni 5 sm ga teng. Trapetsiyaning yuzini toping.
    

A) 36 sm²; C) 36,5 sm²;
B) 35 sm²; D) 72 sm².

18. 
    Ikkita o’xshash uchburchak yuzlarining nisbati nimaga teng?
    

A) O’xshashlik koeffitsiyentiga;
B) Mos tomonlari nisbatiga;
C) Perimetrlari nisbatiga;
D) O’xshashlik koeffitsiyenti kvadratiga.

19. 
    Ikki o’xshash uchburchakning yuzlari 50 va 32 ga, ularning perimetrlari yi’gindisi 117 ga teng bo’lsa, har bir uchburchakning perimetrini toping.
    

A) 52; 65; C) 52; 650;
B) 520; 65; D) 57; 60.

20. 
    Ikkita o’xshash uchburchak perimetrlariining nisbati nimaga teng?
    

A) O’xshashlik koeffitsiyentiga;
B) Mos tomonlari nisbatiga;
C) Mos burchaklari nisbatiga;
D) O’xshashlik koeffitsiyenti kvadratiga.