exam Maths Puzzle Numerical Ability

State the domain of the rational expression in the set builder notation.
6x^2-11x+3/4x^2-12x+9

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exam Other Question

Solve to a solution set.

0.7(9x+9) >_ 2.2-(x+3)
Help with this please, of course the >_ are supossed to be on top of each other. Can somone please help with this. A roof rises 7.5 ft over a horizontal distance of 12.27 ft. What is the slope of the roof to the nearest hundredth?