1 topshiriq. Berilgan savollarga yozma tarzda javob tayyorlang

2 – topshiriq. Test

1. Quydagilardan qaysi biri tengsizlikni qanoatlantiradi?

A)
B)
C)
D)
2. Quydagilardan qaysi biri 2^2x+2^x-6 tengsizlikni qanoatlantiradi?
A)
B)
C)
D)
3. Quydagilardan qaysi biri -x-3<0 tengsizlikni qanoatlantiradi?
A) A=(x / x>- )
B) A=(x / x>6)
C) A=(x / x<3)
D) A=(x / x>1)
4. Quydagi sonlardan qaysi biri chala kvadrat tenglamaning ildizlari bo’ladi?
A) 4;3
B) -2; 1
C) 1;0
D) -2; 2

5. Quydagilardan qaysi biri = + tenglamani qanoatlantiradi?

A) A=(x / -2,5 x 8)
B) A=(x / 2,5 x 8)
C) A=(x / 5 x 8)
D) A=(x / -2 x 8)

6. Quydagilardan qaysi biri =1 tenglamani qanoatlantiradi?

A) A=(x / x=-2, x=8)
B) A=(x / x=3, x= 8)
C) A=(x / x=- 5,x=4)
D) A=(x /x=1,x= 3)
7. Quyidagi xossalarga ega bo’lgan geometrik shaklni ko’rsating: a) 4ta uchi bor, b) 4ta tomoni bor, c) barcha tomonlari teng, d) to’g’ri burchakka ega
A) Trapetsiya
B) Parallelogram
C) To’g’ri to’rtburchak
D) Kvadrat
8. Uchburchakning ikkita tomoni 0,5 va 7,9 ga teng. Uchinchi tomoning uzinligi butun son ekanligini bilgan xolda ushbu tomon topilsin.
A)*8
B) 9
C) 7
D)10
9. Perimetri 30 sm ga teng bo’lgan uchburchak bissektrisasi bilan ikkita uchburchakka ajralgan. Bu uchburchaklarning perimetrlari 16 sm va 24 sm bo’lsa, bissektrisaning uzunligini toping.
A) 5
B) 3,
C)7,
D)4,
10. Teng yonli uchburchakning uchidagi burchagi 94^oga teng. Asosdagi burchaklarning bissektrisaliri o’tkazilgan. Bu bissektrisalar orasidagi o’tkir burchakni toping.
A) 43^O,
B) 37^O,
C) 48^O,
D) 47^O