exam Maths Puzzle Numerical Ability

Solve the system of nonlinear equations:
y = x^3 - 4x
y = -1/2x^2 + 2

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exam Other Question

The width of a a rectangle is fixed 26cm. What length will make the perimeter greater than 94cm? The length must be greater than ??? cm.

HELP. FIND THE AREA INSIDE THE SQUARE,BUT OUTSIDE THE CIRCLE,GIVEN THAT THE RADIUS OF THE CIRCLE IS 2FT.USE 3.14FORPI.OUTSIDE OF SQUARE,6FT HEIGHT,6FT WIDE