- Find the maximum of f(x)=2+5x-x^2?

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How would cell function be affected if cell membranes were rigid and inflexible, like walls? What would happen if SETI did make contact with radio signals, would our government at first try to cover it up again? Must I always use all the known-things in physic probelm? Can I just use some of them when I can find the answer just with some of them? Sketch the graph of the equation.
2y − x^2 = 3? If a room is 6.5 meters in length and 5.2 meters in width. what is the parameter?