Mathematics, 11.02.2020 22:44 codyclay
Let Ω be the set of all permutations of the numbers 1,2, ..., n. Let an almostfixed point be defined as follows: If we put the numbersi∈1,2, ..., naround acircle in clockwise order (such that 1 andnare next to each other) and thenassign another numberω(i)∈1,2, ..., nto it, if the numberω(i) is next toi(oris equal toi), we will say thatiis almost a fixed point. So, for the permutationω(1) = 5, ω(2) = 3, ω(3) = 1, ω(4) = 4, ω(5) = 2, we have that 1, 2, and 4 arealmost fixed points. Now, letX(ω) denote the number of almost fixed points inω∈Ω. FindE[X]and var(X). You may assume thatn≥5
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Mathematics, 21.06.2019 17:00
Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?
Answers: 3
Mathematics, 21.06.2019 20:30
Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.
Answers: 1
Let Ω be the set of all permutations of the numbers 1,2, ..., n. Let an almostfixed point be defined...
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