Add polynomials (intro) Add. Your answer should be an expanded polynomial in standard form. (-4b^2 +8b) + (-4b^3 + 5b^2 - 8b)

Step-by-step explanation:

Hey there!

Given;

Open brackets.

Simplify the like terms.

"+8b" and "-8b" cancelled. And "-4b^2" and "+5b^2" will be subtracted.

Therefore the required answer is -4b^3+b^2.

Hope it helps...

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