Vodiy ta’lim

87. bo’lsa, x + y = ?
A) 2 B) 4 C) 6 D) 8


88. k ning qanday qiymatida k + 2x – 3 = 0
tenglamaning ildizlaridan biri 0,2 ga teng bo’ladi?
A) 15 B) 60 C) 65 D) –135
89. k = 2 bo’lganda y = – 8 funksiyaning grafigi qaysi nuqtadan o’tadi?
A) (– 6; 10) B) (8; 12)
C) (6; – 10) D) (8; – 12)


90. Paralellogramm diagonallarining uzunliklari 4 va
4 ga teng. Ular 45 burchak ostida kesishadi. Parallelogramm katta tomonining uzunligini toping?
A) 7 B) 2 C) 4 D) 8


91. f(x) = funksiyaning aniqlanish sohasini
toping?
A) (– – 4) B) (0 4)
C) (0 3) D) (– 3]


92. Doiraga ichki chizilgan to’g’ri to’rtburchakning
tomonlari 10 va 6 ga teng bo’lsa, doiraning yuzini toping?
A) 16 B) 34 C) 36 D) 64


93. (– 3; 6) va (– 2; – 3) vektorlar berilgan. = – 2 vektorning koordinatalarini ko’rsating?
A) (1; 12) B) (6; 3) C) (2; – 3) D) (– 2; – 9)


94. tg = bo’lsa, (0 ) ni
soddalashtiring?

A) B) C) – D)

95. Agar to’g’ri burchakli uchburchakka ichki va tashqi chizilgan aylanalar radiuslari 2 va 5 ga teng
bo’lsa, markazlar orasidagi masofani toping?
A) B) 5 C) D)


96. Ikkita doiraning umumiy vatari 60 va 120 li yoylarni tortib turadi. Kichik doira yuzining katta doira yuziga nisbatini toping?
A) 1:2 B) 1:3 C) 1:4 D) 2:3
97. a ning qanday qiymatlarida
tenglamalar sistemasi 4 ta yechimga ega bo’ladi?
A) (– ; ) B) (– 2 ; 2 )
C) (– 2 ; – 2) D) (2; 2 )


98. f(x) = – – 35x + 2 funksiya uchun f '(x) = 0 bo’lsa, x ni toping?
A) – 7 va – 5 B) 5 va 7
C) – 7 va 5 D) – 5 va 7
99. Teng yonli trapetsiyaning yon tomoni 8 ga, diagonali o’rta chizig’ini 2 va 4 ga teng kesmalarga ajratadi. Trapetsiya yuzini toping?
A) 36 B) 45 C)12 D) 2