Question

2,4,6 Vă rog mult !!!Dau coroanaaa e urgeeent

Answer 1

2.

Ma=(x+y)/2

x+y=2/11-5/22=4/22-5/22=-1/22

Ma=-1/22×1/2=-1/44=-0,02(27)

4.

P=12 cm

P=3×l

12=3×l ⇒ l=12/3=4, l=4 cm - latura triunghiului

A=l²√3/4

A=16√3/4=4√3

A=4√3 cm²

6.

35% din 600=35/100×600=210 elevi