Solve for f.

0.3=0.5f−0.7

f = 2

Step-by-step explanation:

0.3 = 0.5f - 0.7

1.0 = 0.5f

2 = f

Check:

0.3 = 0.5(2) - 0.7

0.3 = 1 - 0.7

0.3 = 0.3

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

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.