I think they wrote the wrong answers but if y’all find out which one it is thanks

8x^2+16x+16

Step-by-step explanation:

The combined area is the sum of both expressions.

2x^2-13x+21+6x^2+29x-5

8x^2+16x+16

8(x^2+2x+2)

You're right. The multiple choice is just wrong.

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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