The sum of the measure of the interior angles of a polygon is 1080°.

what polygon is it?
hexagon
triangle
decagon
octagon

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Which expression gives you the distance between the points (5,1)and(9,-6)

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)