Find a particular solution yp of the given equation using the method of undetermined coefficients. primes denote derivatives with respect to x. y''-4y=sinh(2x)
the particular solution is yp =

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.