In order to conduct an experiment, 4 subjects are randomly selected from a group of 49 subjects. how many different groups of 4 subjects are possible?

If eh = hg and hg=16, find the diameter of k

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.

What is the value of x in the following equation? -3x-2=2x+8