Assume that 0 < x < = pi/2 and 0 < y < pi/2 find the exact value of sin(x + y) if cos x = 8/17 and sin y = 12/37

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

(a.s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.) [tex] 6\sqrt{3} [/tex]

State how many imaginary and real zeros the function has. f(x) = x3 - 20x2 + 123x - 216