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Mathematics, 21.12.2020 15:00 desireawhatspoppin
In how many ways can one choose 4 edges of a cube so that no two of these edges have a common corner?
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1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
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$5400 is? invested, part of it at 11? % and part of it at 8? %. for a certain? year, the total yield is ? $522.00. how much was invested at each? rate?
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In how many ways can one choose 4 edges of a cube so that no two of these edges have a common corner...
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