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Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex