exam Maths Puzzle Numerical Ability

Find the reference angle R θ if θ = 210�

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exam Other Question

The line is parallel to -3x + 2y = 9 and contains the point (-2, 1)
find the equation of each line write answer in slop intercept form.

can any one please help me out with this. thanks a bunch Express as a polynomial: (x-a)(x^2-ax/x)