exam Maths Puzzle Numerical Ability

Find the iength and width or a rectanguler lot with a perimeter of 88 meters if the length is 4 meters more than the width.

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exam Other Question

a)SOLVE 2X^2=6

b) Find the x-intercepts of f(x)=2x^2-6

What are the solutions?

What are the x-intercepts?


Thank you for any help!!!!
how do i determine whether the graphs of the equation are perpendicular lines?
4y=x+5
9y+3x=2