Matematika 9 sinf I variant

Matematika 9 sinf I variant
1. Ushbu y=x²-6x+10 porabolaning uchi koordinatalari tekisligining qayerida joylashgan.
1.I B.II V.III G. IV

2. k ning qanday qiymatlarida y=-kx² +2 funksiyaning grafigi B(1;3) nuqtadan o’tadi.

A.1 11.-1 V. 2 G. 2

3.Tengsizlikni yeching. (x+6) (x+2)>0

A.(2 ;6) 1 (- ;-2) V. (-6:-2) G.(-6; 2)



4. Tengsizlikni yeching.

A.(2:10) B.(-2;10) V.(-10;-2) 1. (-;2)(10;+)



5. Tengsizlikni yeching




6. Hisoblang.
1.6 B.18 V.9 G.10
7. Hisoblang.


8.Ushbu f(x) = funksiyaning aniqlanish sohasini toping.




9. Ushbu f(x) = funksiyaning aniqlanish sohasini toping.

8. 
   270⁰ ning ragian o’lchovini toping
   

11. ning gradus o’lchovini toping.
A.300 B.305 V.315 G.345

12.100 dan katta bo’lmagan 4 ga karrali barcha natural sonlarning yig’indisini toping.

A.1250 11.1200 V.1120 G.1000


13.Arifmetik prograssiyada va d=5 bo’lsa,
ayirmani toping.
A.13 B.70 V.67 G.64
14. geometrik prograssiyada va
bo’lsa, b₁ ning qiymatini toping.
A.0,4 B.2 V. G.
15.Osuvchi geometric progressiyaning birinchi hadi 3 ga, ettinchi va to’rtinchi hadlarining ayirmasi 168 ga teng, shu progressiyaning maxrajini toping.
A.3 B.2 V. G.
16. ni hosoblang
A.0,3 B.0,4 V.0,5 G.0,6
17.Perimetrlari 24 va 36 bo’lgan o’xshash uchburchakdan birining yuzi ikkinchisidan 10 ga ortiq,kichik uchburchakning yuzini toping.
A. 20 B.8 V.16 G.18

18.ABC uchburchakning AB va BC tomonlaridan 0 nuqtada olingan D va E nuqtalar uchun ACIIDB ekani ma‘lum AC=6,DB=3 va DE=2 bo’lsa,AB=?

A. 6 B. 12 V. 8 11 .9

19.ABC to’gri burchakli uchburchakda gipotenuzadan CD balandlik o’tkazilikda. Agar burchak β=60⁰ va BD=2 bo’lsa, gipotenuzaning uzunligini toping?

A. 8 B. 9 V. 6 G.7

20. To’g’ri burchakli uchburchakning burchagi 60⁰ ga, gipotenuzaga tushush balandligi 21 ga teng. Uchburchakning katta katetini toping.

A. 8 B. 9 V. 6 G.7

21. Aylananaing markaziy burchagi 90⁰ , unga tiralgan yoy uzunligi 15 sm bo’lsa, aylananing radiusi necha sm..

A. B. V. G.

22. Ushbu x² +y² +4x+6y –3=0 tenglama bilan berilgan aylananing radiusini toping.

A.3 B.4 V.5 G.6

23. Teng tomonli uchburchakka chizilgan aylananing radiusi topish formulasini ko`rsating.

A.r=h/6 B.r=h/2 V. r=h/4 11, r=h/3

24. Muntazam uchburchakning medianasi 24 ga teng. Unga ichki chizilgan doutaning yuzini toping.

A. 60 π B. 68 π V. 64 π G. 72 π

25.Tomoni 81 ga teng bo’lgan teng tomonli uchburchakka tashqi chizilgan aylananing radiusini toping..

1. 27 B. 28 V. 24 G. 25