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Mathematics, 21.06.2019 20:00
The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
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Mathematics, 22.06.2019 00:30
Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm2. what is the area of the second triangle?
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Mathematics, 22.06.2019 01:00
Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?
Answers: 2
English, 20.04.2020 12:46
Chemistry, 20.04.2020 12:47
Mathematics, 20.04.2020 12:47
Mathematics, 20.04.2020 12:53
English, 20.04.2020 13:08
English, 20.04.2020 13:08
History, 20.04.2020 13:09
History, 20.04.2020 13:09
English, 20.04.2020 13:09