A skyscraper in London, England, has a roof in the shape of a square pyramid. Its approximate dimensions are shown in the net.

What is the surface area of the skyscraper's roof, including the base.

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74

How is the interquartile range calculated?