Solve the following equation using the quadratic formula. 12 - &r + 97 = 0
O A
r = -4 + 9i and r = -4 - 9i
B.
r = 4 + 9i and = 4 – 9i
o
c.
I = 8 + 18i and I = 8 – 18i
D.
I = -8 + 18i and r
-8 – 181

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

a: inscribed angles

step-by-step explanation:

i reviewed this question with a peer and teacher, seems to be correct, me later

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step-by-step explanation:

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