Please help me with this question

A

Step-by-step explanation:

2 (1+n)= - 1n

3 2

2+2n = - n/2

3

2(2+2n) = - 3n

4+4n = - 3n

4 = - 3n - 4n

4= - 7n

n = - 4

7

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

answer: 177/8

step-by-step explanation: