Carly plans to build a rectangular pen against an existing fence for her dog. She buy 20 yards of fence material. The two widths of her pen will each be and the length will be 20 - 2x . Determine a formula for the area of the pen. What is the maximum area possible for the pen? 200 square yards
90 square yards
150 square yards
50 square yards

Need 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.