12. Write 18(cos 169° + isin169°) in rectangular form. Round numerical entries in the answer to two decimal places. (Show work)

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

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.

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function