Which set of steps can be used to prove the sine sum identity sin (x+y) =sin(x) cos(y) +cos(x)sin(y)? look at the pic below

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle