The values differ from the mean by an average of 46,54,43,57,50,62,78,42

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

How would you find the height of points on the circle? the topic is trigonometry.