Given ΔVXY and ΔVWZ, what is the perimeter of the trapezoid WXYZ?

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?