20 ! ! which statement is true about the graphs shown? a) only graph a represents a proportional relationship. b) only graph b represents a proportional relationship. c) graph a and graph b both represent a proportional relationship. d) graph a and graph b both represent a non-proportional relationship.

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.

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)