Solve the equation by the method of your choice. Simplify irrational solutions, if possible.
- 
r + 
= 0
A. {-2, 2}
B. 0
C. {-2}
D. {2}
Answer: D
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Graph the functions on the same grid.y = 4x - 1 and y = 
+ 
A. 
B. 
C. 
D. 
Solve the problem.For a motorcycle traveling at speed 
when the brakes are applied, the distance 
required to stop the motorcycle may be approximated by the formula 
Find the instantaneous rate of change of stopping distance with respect to velocity when the speed is 
A. 10.2 ft/mph B. 4.1 ft/mph C. 5.1 ft/mph D. 42 ft/mph
Write the first four elements of the sequence.
A. 1, 
, 
, 
B. 
, 
, 
, 
C. 0, 
, 
, 
D. -1, 1, 
, 
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.