C -5 d −1 bo’lsa, ni a orqali ifodalang. A

A) -9 B) -17 C) 0 D) 1
16. Harakatga kirmaydigan almashtirishni belgilang.
A) simmetrik almashtirish B) burish C) parallel ko’chirish D) gomotetiya
17. x³+3x²-5x-14=0 tenglamaning barcha haqiqiy ildizlari yig’indisini toping.
A) -3 B) 4 C) -6 D) 6
18 tengsizlikni yeching. A) 4B) x<4 C) D) x<3
19. Ikkita ketma-ket toq sonlar kvadratlarining ayirmasi nechaga bo’linadi?
A) 3 B) 5 C) 6 D) 8
20. To’g’ri burchakli uchburchakka ichki chizilgan aylananing urinish nuqtasi katetlaridan birini to’g’ri burchak uchidan boshlab hisoblanganda uzunliklari 3 va 4ga tengbo’lgan kesmalarga ajratadi. Gipotenuza uzunligini toping.
A) 5 B) 10 C) 18 D) 25
21. ABC uchburchakda AB=5, BC=9 bo’lib, BM mediana 6 ga teng bo’lsa, uchburchakning yuzi qanday bo’ladi?
A) 26 B) C) D)
22. m ning qanday qiymatida 3x⁴-2x³-m²x-2 ko’phad x-2 ga qoldiqsiz bo’linadi.
A) B) C) D)
23. Berilgan uchta sonning uchinchisi birinchisiga 18,48:15,4 nisbatda bo’lib, ikkinchisining 40% ini tashkil etadi. Birinchi va ikkinchi sonning yig’indisi 460 ga teng. Uchinchi sonni toping.
A) 115 B) 138 C) 345 D) 598
24. ni soddalashtiring. A) B) - C) -2 D) -1
25. Prizmaning asosi tomoni a ga teng muntazam oltiburchakdan, yon yoqlari kvadratlardan iborat. Uning diagonal kesimlarining yuzlarini hisoblang.
A) B) C) D)
26. Aylananing vatari o’zi tortib turgan kichik yoyning ixtiyoriy nuqtasidan 124⁰ burchak ostida ko’rinadi. Bu vatar uchidan o’tkazilgan urinma va ushbu vatar orasidagi burchakni toping.
A) 56⁰ B) 62⁰ C) 28⁰ D) 31⁰
27. tengsizlikni yeching. A) (5;6) B) (6;∞) C) Ø D) [6;∞)
28. AB kesma tekislik bilan li burchak hosil qiladi va AB kesmaning tekislikka proyeksiyasi 14 sm ga teng. AB kesmaning uzunligini toping.
A) 20 B) 28 C) 30 D) 32
29. tenglama ildizlarining ko’paytmasini toping.
A) -3 B) -15 C) 15 D) 0
30. ax-b=3+4x tenglama cheksiz ko’p yechimga ega. ning qiymatini toping.
A) 3 B) 4 C) 5 D) 6

III variant

1. ifodani soddalashtiring. A) 2 B) -1 C) D) -2
2. funksiyaning grafigi qaysi choraklardan o’tadi?
A) I,III,IV B) II, III, IV C) I, II, IV D) barchasidan
3. Teng yonli to’g’ri burchakli uchburchak R radiusli doiraga ichki chizilgan. Boshqa aylana bu uchburchakning katetlariga va birinchi aylanaga urinadi. Shu aylananing radiusini toping.
A) B) C) D)
4. tenglamalar sistemasi a ning qanday qiymatlarida cheksiz ko’p yechimga ega bo’ladi?
A) 2 B) 3 C) 2; 3 D) 5; 2
5. P(x) ko’phad; (x²+2) P(x)+ax+b = x⁷ +2x⁵ +3x⁴ +3x³ -2x +5 bo’lsa, a+b=?
A) -23 B) 9 C) 12 D) 23
6. Soddalashtiring:
A) x-z B) x-2y+z C) x+z D) x+2y-z
7. ABCD trapesiyada AB=5, BC=2, CD=5, DA=10 (AD//BC) ning bissektrissasi BC tomonning davomini K nuqtada kesib o’tadi. ABK uchburchakning ABK burchagi bissektrisasini toping.
A) B) C) D)
8. 7¹²² ni 11 ga bo’lgandagi qoldiqni toping