Anna counted the number of articles in several different magazines. Number of articles Number of magazines 17 5 23 4 27 3 29 3 36 3 46 2 X is the number of articles that a randomly chosen magazine had. What is the expected value of X? Write your answer as a decimal.​

Acircle has a circumference of 7.850 units. what is its radius?

Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d

Using elimination, what is -4x+2y=-12 4x+8y=-24