Suppose cos(x)=-1/3, where pi/2≤x≤ pi. What is the value of tan(2x)?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?