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Maths Puzzle
Numerical Ability
Chelsea sold 2 cars for $6,000 each, making 20% on car#1 & losing 20% on car#2. Did he make money, lose money or break even?
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book Other Question
How to calculate the A,B,C,D,E and F coefficients in the equation:Ax²+Bxy+Cy²+Dx+Ey+F=0 if 5 points on that conic are known?
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Simplify the radical.
4 radical sign 3 + 2 radical sign