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Mathematics, 06.01.2020 02:31 Fhalcon543
Amarketing firm claims that its ad campaign will increase sales of a toy during the holidays by 25%. what would the null hypothesis be in this scenario?
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Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.
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Mathematics, 21.06.2019 22:00
What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?
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