exam
Maths Puzzle
Numerical Ability
how can i solve a quadratic equation
give me an example where i can see each
step on solving it
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exam Other Question
how do i find the squares?
(7p+6q)^2
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?