Mathematics, 04.02.2020 21:50 cpcoolestkid4
Previously, 44% of mothers smoked more than 21 cigarettes during their pregnancy. an obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 44% today. she randomly selects 120120 pregnant mothers and finds that 33 of them smoked 21 or more cigarettes during pregnancy. test the researcher's statement at the alpha equals 0.05α=0.05 level of significance.
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Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?
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If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8
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Mathematics, 21.06.2019 21:00
Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)
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Previously, 44% of mothers smoked more than 21 cigarettes during their pregnancy. an obstetrician be...
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