How many groups of 4 balls can be selected from a bag of 10 balls?

Module 10 coordinate proof using slope and distance answers is quadrilateral abcd a parallelogram? explain how you know.

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

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.