2.Encyclopedia Britannica on the head of a pin: Assume that there are 26 volumes (A-Z) each of 1000 pages, each page being a 6x10 inches. How many times does the entire surface area have to be demagnified to fit into the head of a pin (diameter 0.5 mm)? Assuming 50 characters across a line of each page, how many iron atoms would there be across each character (Fe atomic diameter = 0.25 nm)?

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

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.

Which value of y will make the inequality y< -1 false?