Solve the problem.Researchers conducted a weight loss study of moderately overweight women. In addition to dieting, the women kept exercise and weight loss journals for one year. The researchers used this data to derive a polynomial function that models average monthly weight loss as a function of average weekly minutes of aerobic exercise. As its coefficients make the function difficult to compute by hand, the graph below was used in estimating.
Use the graph to estimate a women's average monthly weight loss if she exercised an average of 45 minutes per week.
A. 1.1 lb
B. 2.1 lb
C. 2.6 lb
D. 1.5 lb
Answer: D
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Factor completely. If the polynomial is prime, state so.169x4 - 121y6
A. (13x2 + 11y3)2 B. (13x2 - 11y3)2 C. prime D. (13x2 + 11y3)(13x2 - 11y3)
Determine independence. Answer Yes or No.The table shows the political affiliation of voters in one city and their positions on stronger gun control laws. ?Stronger Gun Control 
Are party affiliation and position on gun control laws independent?
A. Yes B. No
Use graphs and tables to find the limit and identify any vertical asymptotes.
A. The limit does not exist; no vertical asymptotes B. 1 ; x = -6 C. 0 ; no vertical asymptotes D. The limit does not exist; x = -6 and x = 6
Use back-substitution to solve the system of linear equations.
a. 
b. 
c. 
d. 