Which of the following number sentences is an example of the identity property of addition?

16 × 0 = 0
8 + 0 = 8
1 × 4 = 4
1 + 11 = 11 + 1

Which equation represents the partial sum of the geometric series?

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

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