1. Agar a=21, b=36 bo’lsa,55a-3b ifodaning qiymatini toping

1.Agar a=21, b=36 bo’lsa,55a-3b ifodaning qiymatini toping.

A)

2.ABC uchburchakning AB tomoni 234 mm va u AC tomondan 5 marta qisqa.Agar uchburchak perimetri 2450 mm bo’lsa, BC tomon uzunligini toping.

A)

3.Ko’paytirishning guruhlash xossasi qaysi bandda keltirilgan?

A)a b=b a B)a+b=b+a C)a D)a (b c)=(a c

4.Tenglama ildizini toping. x+x-20=x+5

A)

5.Shunday sonni topingki, uni 29ga bo’lganda, 23 hosil bo’lib,12qoldiq qolsin.

A)

6.