Question

Ex 2,3 rapid dau coroana Multumesc mukt rapiddd dau coroana

Answer 1

2) x=8-2√7 si y=2√7
Ma=(x+y)/2=(8-2√7+2√7)/2=8/2=4

3) Notez cu x-lungimea traseului
I: 30x/100=3x/10
II: 350 km
3x/10+350 km=x
3x+3500 km=10x
3x-10x=-3500 km
-7x=-3500 km
x=-3500 km/-7
x=500 km