Im on a time i don't understand ! if line ba is congruent to line ca, which of the following is true: 1) line gf is congruent to line he 2) triangle edf is congruent to triangle gdh 3) line gf is congruent to line ef 4) line ed is congruent to line dh

Which is an equation for the nth terms of the sequence 12,15,18,21

Needmax 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.

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?