Which of the following systems of equations is an example of one where substitution is the best method? A.) x = 4
y = 11
B.) y = 2/7x + 11
3x - 4y = -24
C.) 5x + 3y = 15
-3x = 6y = 12
D.) 4x - 5y = 20
-6x + 2y = -42

because its not ur topic and its not for is for homework not that.

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°

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answer: its the third option.

step-by-step explanation:

i just took the test.