Jaden's train travels 130 km in 75 minutes. Dani's train travels 312 km. It leaves at 15:15 and arrives at 18:30.Work out the difference, in km/h, between the average speed of their trains.

If square root x = -7, then x= -49 true or false

Now 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.

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent