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Maths Puzzle
Numerical Ability
factor: 18-3n
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Maximizing profit. The total profit (in dollars) for sales of x rowing machines is given by P(x)=-0.2x^2 + 300x-200. What is the profit if 500 are sold? For what value of x will the profit be at a maximum?
the length of arectangle is is 4in grater than the width . the perimeter is 24in find the dementions