Solve the given equation.x4 = 37
A. 6.0828
B. 9.25
C. 2.4663
D. 18.5
Answer: C
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Find the area of the shaded region. Round results to the nearest unit.
A. 267 mm2 B. 539 mm2 C. 728 mm2 D. 434 mm2
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.The results of this study are likely to be invalid mostly because
A. the subjects did not know that they were getting a treatment. B. the presence of solitary confinement could be a confounding variable in this study. C. the treatment group and control group were not the same size. D. the subjects did not volunteer to be treated. E. none of these
Write the expression in the standard form a + bi.If z = 7 - 3i, evaluate z
.
A. 40 B. 58 C. 49 - 9i D. 49 - 9i2
Solve the system of equations. If there is no solution to the system, give a reason.2x - 6y = 710x - 30y = 28
A. No solution; inconsistent system of equations
B. 
C. Infinite number of solutions; dependent equations
D. (7, 28)