If 3x + 4y = 5, and x - y = 1, then what is y and x?

Chose the graph below that represents the following system of inequality’s

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

What is another way to express 36 +32