exam Maths Puzzle Numerical Ability

Finding the axis of symmetry. y=x^2+9x+9

a x=-9/2

b x=9/2

c x=-9

d x=9

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exam Other Question

i got to find the width of a rectangle with the perimeter being 22 but, i have to use the given formulas Solve. 5(x � 5) + 8x = 9x � 25