Find the limit (if it exists). (if an answer does not exist, enter dne.) lim_(x-> 7)f(x) text(, where ) f(x)={(x**2-8 x+7 text(if ) x < 7,-x**2 + 8 x - 7 text(if ) x > = 7)

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Find the maximum value of p= 4x + 5y subject to the following constraints :