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Find Marginal Cost from total cost function (P^2)A(P)? Number Theory: Find the roots of 4x^2+6x+1 in Z11 (could you please explain step by step? THANKS!)? Is there a musical term for two independent, non-complementary, parts being played simultaneously? What about for three parts? In one mole of the compound iron(III) oxide,
what fraction of the total number of ions is
the oxygen ion? Verify that M(u,v)=A +u(B-A) +v(C -A) ( A,B,C vectors) is a parametric representation of surface of the triangle A(1,0,0) B(0,-1,2) C(0,2,1)?