In quadrilateral ABCD, AD | BC. What must the length of segment AD be for the
quadrilateral to be a parallelogram?
B
8 units
o 16 units
3x + 7
5x -9
031 units
62 units

What two criteria are needed for triangles to be similar

What is the relationship between all triangles that can be drawn given the same three angles

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.