Use a graphing utility and the change-of-base formula to graph the function.y = log1/3 (x - 1)
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Answer: C
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Solve the problem.Murrel's formula for calculating the total amount of rest, in minutes, required after performing a particular type of work activity for 30 minutes is given by the formula R(w) = 
, where w is the work expended in kilocalories per min. A bicyclist expends 6 kcal/min as she cycles home from work. Find R'(w) for the cyclist; that is, find R'(6).
A. 2.96 min2/kcal B. 3.7 min2/kcal C. 4.44 min2/kcal D. 13.33 min2/kcal
Solve.A landscaping company sells 40-pound bags of top soil. The actual weight x of a bag, however, may differ from the advertised weight by as much as 0.75 pound. Write an inequality involving absolute value that expresses the relationship between the actual weight x of a bag and 40 pounds. Solve the inequality, and express the answer in interval form.
A. |x|- 40 ? 0.75 ; (-?, 40.75] B. |x + 0.75| ? 40; [39.25, ?) C. |40 + x| ? 0.75; [39.25, 40.75] D. |40 - x|? 0.75; [39.25, 40.75]
Solve the equation by the method of your choice. Simplify solutions, if possible.(x + 17)(2x - 18) = 7(x - 1) - 306
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B. 
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Add or subtract as indicated. Write the answer in simplest form.
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