14. There are 11 boys and 10 girls in a classroom. A teacher chooses a student at random and puts that student at the head of a line, chooses a second student at random and makes that student second in the line, and
so on, until all 21 students are in the line. What is the probability that the teacher puts them in a line
alternating boys and girls? where no two of the same gender stand together?

Its ugent ill mark brainleyest how many different triangles can be constructed with angle measurements 134°,10°, and 36° ? exactly one triangle more than one triangle no triangles

Find the area of a parallelogram with base 15 yards and height 21 2/3

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.