Determine whether the equation is an identity or not an identity. Sin theta/cos theta + cos theta/sin theta = cos theta sin theta

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?