How many solutions does the system have

x=-3, y=-5 & x=1, y=3. The system have two solutions.

Step-by-step explanation:

x^2+4x-2=2x+1

x^2+4x-2x-2-1=0

x^2+2x-3=0

factor out the trinomial

(x+3)(x-1)=0

zero property

x+3=0, x-1=0

x=0-3=-3

x=0+1=1

y=2(-3)+1=-6+1=-5

y=2(1)+1=2+1=3

if he has no friends he cant give them out to his friends

step-by-step explanation:

no friends = cant give anything out

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this