exam Maths Puzzle Numerical Ability

Solve absolute value inequality and graph solution set.

1 > 1/2|6 - x| - 3/4

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exam Other Question

I am having trouble solving this system using the substitution method. 2x + y = -1....then underneath x^2 = 4 + y. Thanks for your help! can someone please help me with this problem:

Complete the square and write the equation in standard form. Then give the center and radius of the circle.

x^2^+ y^2 - 2x - 4y - 4 = 0