Which system of inequalities has no solution?
O A. y < 2x - 4
y > 2x + 1
O
...
Mathematics, 01.06.2021 02:00, larissacrystalow8g2w
Which system of inequalities has no solution?
O A. y < 2x - 4
y > 2x + 1
O
B. 2x + y 2 3
y2 - 2x - 3
O
C. 4x + 4y < 16
X>y + 16
O D. y< -6x -24
y < 6x + 6
Answers: 3
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Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias
Answers: 2
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