Itâs a cost-benefit analysis: If it costs you 3 hours weekly to do the wash, but costs you $30 to send it out â that is $10 per hour. But if you bill more than that at your business â or stand to get a raise if you use those three hours to learn new skills, earn a degree, etc., it is worth the investment.
Coordinate Rules for Rotations. In general, we can state the following coordinate rules for (counterclockwise) rotations about the origin: For a rotation of 90o: (x, y) --> (ây, x) For a rotation of 180o: (x, y) --> (âx, ây) For a rotation of 270o: (x, y) --> (y, âx)
Answers. Best Answer: counterclockwise (- 5, 3).......to see this consider the point (cos Î¸, sin Î¸) after a 90Â° rotation the point is (cos [Î¸ + 90Â°] , sin [Î¸ + 90Â°]) = (- sin Î¸, cos Î¸).Source(s): ted s Â· 2 years ago.Thumbs up. 0.est Answer: counterclockwise (- 5, 3).......to see this consider the point (cos Î¸, sin Î¸) after a 90Â° rotation the point is (cos [Î¸ + 90Â°] , sin [Î¸ + 90Â°]) = (- sin Î¸, cos Î¸). Source(s):