A vacationer, on her newly purchased sailboat, moves at a constant velocity of 9.0 m/s (south) for 35 min, and then returns in the opposite direction at a speed of 4.0 ms for 45 min. The overall displacement of the vacationer for this trip is a. b x 10ºm [S]. The
values of a, b, and c, respectively, are

What is the missing step in this proof ?

Someone answer asap for ! 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.

How can (square root of 25) ^2 be rewritten?