The metal of the electric machine is made of copper. At room temperature it has a resistance of 20 Ohm at operating temperature a resistance of 23.9 ohm was measured. Determine the operating temperature. Alpha for copper = 0.0039 ° c-1

Part of the total score for each program is the sum of five program component scores. on the free program, the sum of these five program component scores is multiplied by a factor of 2.0. yuzuru hanyu, of japan, earned scores of 9.07, 8.96, 8.89, 9.21, and 9.36 for the program components portion of his free program. how many total points did he receive for this portion?

Which system of linear inequalities is graphed? can somebody pleasssse

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?