Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 26 psi. Suppose the actual air pressure of the right and left tires are random variables X and Y respectively, with the joint p.d.f. f(x, y) = K(x^2+ y^2) when 20 < X < 30 and 20 < y < 30 and zero otherwise. Determine the marginal distribution of air pressure in the right tire alone. (Leave it in terms of K)

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