exam
Maths Puzzle
Numerical Ability
solve the rational enequality and graph the solution set on a real number line. express the solution set in interval notation.
x-9/x+1>0
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exam Other Question
Lucy has invested some money invested at 18% and three times as much invested at 12%. her total annual income from the 2 investment is 85,000 pesos. how much was invested at each rate?
1. Express the area of a 30-60-90 triangle as a function of the length h of the hypotenuse.
2. Express the area A of a equilateral triangle as a function of the perimetor P.