What does (2x^2+3x-4)+(x^2-x-2) equal?

3x2+2x+2

Step-by-step explanation:

(2x2+3x+4)+(x2-x-2)

2x2+3x+4+x2-x-2

Like terms

1) numbers without variables: +4 and -2

2) numbers with a single x variable: +3x and -x

3) numbers with a x2 variable: +2x2 and +x2

Combine like terms

1) +4-2=2

2) +3x-x=2x

3) +2x2+x2=3x2

Add the combined terms together to get your answer

3x2+2x+2

3.76%

step-by-step explanation:

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