Solve the problem.Let f(x) = x1.46 - x3.5. Approximate f(2.22) to the nearest hundredth.
A. x ? 0.37
B. x ? 0.25
C. x ? -13.82
D. x ? -13.10
Answer: D
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Use U = universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 5, 8}, B = {2, 3, 5, 7}, and C = {1, 4, 9} to find the set.B ? C
A. { } B. {0} C. {1, 2, 3, 5, 7, 9} D. {1, 2, 3, 4, 5, 7, 9}
Round the money amount to the specified place.$99.81 to the nearest dollar
A. $99.90 B. $0 C. $90 D. $100
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
Solve the problem.The profit made when t units are sold, t > 0, is given by 
Determine the number of units to be sold in order for P < 0 (a loss is taken).
A. t > 0 B. 13 < t < 20 C. t = 13 or t = 20 D. t < 13 or t > 20