If si A / 1+ cosA 1+cosA / sin A = 4, prove A = 30

4+6x-3x^3 in standard form with explanations because i don’t understand

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

Solve 30% of what = 60 step by step