Find the mean of the following set of data. round your answer to two decimal places.23, 50, 49, 48, 49, 32, 37, 40, 41, 42, 41, 41, 43

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Ineed with this problem 21 show steps

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*