5
11
​
= ÷
i need help im confused

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

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

Graph the equationy= x+3[tex]y = x + 3[/tex]