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Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
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Mathematics, 22.06.2019 00:40
The length of the line segment ac is 8x-9 what is the value of x
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Mathematics, 22.06.2019 02:30
Robert has 78 tomatoes and 56 cucumbers he wants to plant them in equal rows how many in each row
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