5929 divide 3
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Which system of linear inequalites is represented by the graph?

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?