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    Determining the possible values of y for the graph y=x+2/3-x^2

    Homework Statement Determine the possible values that y can take for the graph y=x+2/3-x^2 Homework Equations N/A The Attempt at a Solution y=k k(3-x^2)=x+2 3k-kx^2=x+2 -kx^2+3k-x-2=0 I've tried factorising my k terms and much more faffing about to no avail...help please? :s
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    Atomic/molecular level definition/description of density.

    I am in the process of completing a short presentation on the properties of depleted uranium that make it so suited to it's use in modern munitions. I have stated that DU's high density means that a projectile made from it will have a much smaller cross sectional area than one made of steel...
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