exam
Maths Puzzle
Numerical Ability
What is the symmetries if any, of the equation x^2 + y^2=36
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exam Other Question
Could you please help me solve this equation?
2x^2-x-9/(x+1)(x^2+5)=A/x+1+Bx+C/x^2+5
solve the problem. Suppose a cost-benefit model is given by:
2845
y = ------
100-x
where y is the cost for removing x percent of a given polutant. what percent