exam Maths Puzzle Numerical Ability

Find the distance between each pair of points.

(-3,0) and (4,0)

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exam Other Question

My function is y= -X2-4x-3, the x2 is x squared, couldnt make the 2 small. i need to know how to make a x,y table and grapgh the parabola, thanks The ratio of two supplementary angles is 1:7. Find the measure of the smallest angle.