PLZ HELP ME I"LL DO ANYTHING Which set of ordered pairs represents a function?
{(−8,1),(5,−7),(−6,9),(−6,−9)}
{(-2, -3), (2, 1), (2, 6), (4, 9)}
{(-8, 4), (6, 4), (9, 1), (7, -6)}
{(-4, 5), (0, 0), (2, -8), (2, 0)}

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.