Santiago is trying to show his teacher why the product of two rational numbers is another rational number. his first steps are shown. which is the best method santiago could use to continue?
test with m = 1, n = 2, p = 3, and q = 4. since 12 and 34 are both rational, it is clear that the statement is true.

mn × pq = m×pn×q
show that mp and nq are both integers.

mn × pq = m×pn×q
show that mn and pq are all integers.

since mn is rational and pq is rational, then mn × pq must be rational.

Blank × 10-3 is 2,000 times greater than 1.9 × 10-6. it is also blank times greater than 9.5 × 10-4.

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.

Use the distance formula to find the distance between (-3,5) and (3,1)