Which regular polygon has a minimum rotation of 45 degrees to carry the polygon onto itself?
a. octagon
b. decagon
c. hexagon
d. pentagon

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

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Determine if the equation defines y as a function of x: 2xy = 1. yes o no