Simplify.
- 
A. 
B. 
C. 
D. 
Answer: D
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Use the guidelines to evaluate the study. From the information given, what is the biggest flaw in the study?A film critic is interested in knowing which is the most popular film of the year amongst Americans. To answer this question, he conducts a telephone poll in the New York metropolitan area and asks each person to name their favorite film of the year.
A. Setting may not encourage honest responses B. Selection bias C. Wording of the question D. Confounding variables E. Participation bias
Rewrite as a fraction.
%
A. 
B. 
C. 
D. 
Use a graphing calculator to graph the piecewise-defined function, using the window indicated.f(x) = 
; window [-4, 6] by [-2, 8]
A. 
B. 
C. 
D. 
Solve the problem.Use the comparison line graph to determine how many more hours Jennifer needed to prepare for Test 3 than David.
A. 2 B. 4 C. 1 D. 3