Solve the inequality.s2 - 2s - 8 < 0
A. (-2, 4)
B. (-?, -2)
C. (-?, -2) or (4, ?)
D. (4, ?)
Answer: A
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In order to determine the effects of a new high carbohydrate diet intended to treat depression, a researcher conducts a study. Five hundred inmates in the Middletown prison are selected to participate in the study. The researcher puts the 400 inmates not in solitary confinement on the new diet. The 100 inmates in solitary confinement are given their regular meals. The 400 inmates on the new diet are not aware that they being studied or that their diet has been modified, but have many fewer reported cases of depression after 30 days.In this study, which is the control group?
A. the 400 inmates not in solitary confinement B. the subjects that responded to the treatment C. the 100 inmates in solitary confinement D. There is no control group. E. none of these
Divide and simplify.
A. 2x3y2 B. -2x1.6y1.66666667 C. -2x3y2 D. 12x3y2
Provide an appropriate response.If the markup on a product is based on the selling price, then the selling price equals 100%.
A. True B. False
Factor completely.20x3 - 54x2 + 10x
A. x(2x - 5)(10x - 2) B. 2x(2x - 5)(5x - 1) C. 2(2x2 - 5)(5x - 1) D. x(4x - 10)(5x - 1)