Evaluate the absolute value.|-24|
A. -24
B. 0
C. 24
D. 48
Answer: C
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Use the guidelines to evaluate the study. From the information given, what is the biggest flaw in the study?A researcher was interested in the exercise habits of the residents of the village of Pine Heights. She interviewed every 10th person who left the post office until she had interviewed 100 people. Each of the people interviewed was asked to rate their exercise level according to the following scheme "(1) very little, (2) some, (3) moderate, (4) a lot, (5) extensive". The researcher reported that, on average, the residents of Pine Heights exercise moderately.
A. Selection bias B. Measurement of the variable is not well defined C. Confounding variables D. The source of the study E. Participation bias
For points 
in quadrant IV, the ratio 
is always negative because x is always positive and y is always negative. In what other quadrant is the ratio
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Find the numbers at which f is continuous. At which numbers is f discontinuous?f(x) = 4 tan x
A. continuous for all real numbers except x = 
where k is an odd integer
B. continuous for all real numbers
C. continuous for all real numbers except x = 0
D. continuous for all real numbers except x = 
where k is an odd integer
Solve the problem.A weight attached to a spring is pulled down 3 inches below the equilibrium position. Assuming that the period of the system is 
second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. y = 3 cos 
t
B. y = -3 cos 10?t
C. y = 3 cos 10?t
D. y = -3 cos 5?t