a biased coin has probability 0.8 of turning up heads. you win $x if a head comes up and you lose $y if a tail comes up. if your expected winnings is $0, what is the relationship between x and y?

7for nonmembers i think

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c