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A lecture hall contains $20$ chairs, all lined in a row. What is the number of ways that five chairs can be chosen, so that no two chairs are adjacent?
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Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?
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Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile
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Mathematics, 22.06.2019 05:30
The sales tax for an item was $8.40 and it cost $420 before tax. find the sales tax rate. write your answer as a percentage.
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A lecture hall contains $20$ chairs, all lined in a row. What is the number of ways that five chairs...
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