The lengths of the radii of circles form a geometric series. The radius of the first circle is 15cm. The radius decreases by of the length of the previous circle. Determine the total
area of all the circles in the series. Give your answer in terms of π​

Cor d? ? me ? 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.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)