Cho hình thang ABCD có ab song song với cd, ad+bc=cd. liệu hai đường phân giác của góc a và góc b có cắt nhau tại một điểm nằm trên đáy dc hay không

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

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.

Find two consexutive odd integers such that the sum of their square is 650