8-sinf test Tеngsizlikni yeching

Tengsizlikni yeching:|1-3x|≤2 А) В) С) D)

Proporsiyaning noma’lum hadini toping. А) В) С) D)

Tengsizlikni yeching. | 5 -2x | < 1 А) В) С) D)

ABCD to‘g‘ri to‘rtburchakning BC tomonida P nuqta shunday belgilanganki, unda AP=15 sm va PC=6 sm. Agar AB=12 sm bo‘lsa, APCD to‘rtburchak yuzini toping. А)105 В)124 С)88 D)90

Ko‘paytmasi 156 ga teng bo‘lgan 2 ta ketma-ket natural sonni toping. А) 22 va 23 В) 17 va 18 С) 12 va 13 D)12 va 18

400 km masofani tez yurar poezd yuk poezdiga qaraganda 1 soat tezroq o‘tdi. Agar yuk poezdining tezligi tezyurar poezdnikidan 20 km soat kam bo‘lsa yuk poezdining tezligini toping. А)80 km soat В)100 km soat С)85 km soat D)75 km soat

Tenglamalar sistemasini eching. А) (-3;-3), (-7;-13) В) (3;-3), (13;7) С) (-3;-3), (7;13) D)(-3;3), (7;13)