PLS help i've been trying this for an hour i still don't get it
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Mathematics, 21.06.2019 22:10
Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.
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Mathematics, 21.06.2019 23:00
The value of cos 30° is the same as which of the following?
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