The table shows the derivation of tan(2x). Select the correct reason for each step. Reason 1 is:
Reason 2 is:
Reason 3 is:

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

Louis wants to carpet the rectangular floor of his basement. the basement has an area of 864 square feet. the width of the basement is 2/3 it's length. what is the length of louis's basement