In order to determine the effects of a new pill that is supposed to reduce hair loss, a researcher conducts a study. Five hundred volunteer subjects (300 men and 200 women) all of which suffer some degree of hair loss are selected to participate in the study. The researcher gives the women the real pill and the men a sugar pill, but only the researcher knows this.Which of the following statements is not true about this situation?
A. The study is a double-blind experiment.
B. The study is not a blind experiment.
C. The study is a double-blind experiment, but not a blind experiment.
D. The study is a blind experiment, but not a double-blind experiment.
E. All of these statements are true.
Answer: C
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Solve the problem. Round rates to the nearest tenth of a percent as necessary, amounts to the nearest dollar, and time to the nearest day.A $9770 note is signed, for 100 days, at a discount rate of 7.5%. Find the proceeds.
A. $9037.25 B. $9569.25 C. $9770.00 D. $9566.46
Find the equation in standard form of the parabola described.The vertex has coordinates (3, -5), and the focus has coordinates (3, -7).
A. (x - 3)2 = -8(y + 5) B. (y - 5)2 = 16(x + 3) C. (x - 3)2 = 8(y + 5) D. (y - 5)2 = -16(x + 3)
Factor completely. If the polynomial cannot be factored, say it is prime.x3 + 50x2 + 625x
A. x(x - 25)2 B. x(x + 25)(x - 25) C. x(x + 25)2 D. prime
Graph the inequality.y > - 4x + 5
A. 
B. 
C. 
D. 