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The sum of two numbers is 86, and their difference is 20. find the two numbers
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Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?
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Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.
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