2x² + 5x² - 3x²

¿cuánto es?​

4x^2

Step-by-step explanation:

4x^2

Step-by-step explanation:

Combine like terms: in this case they were all x^2.

2x^2 + 5x^2= 7x^2

7x^2 - 3x^2 = 4x^2

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