7. [3/5 Points] PREVIOUS ANSWERS LCALCCONS 3.5.021. ASK YOUR TEACHER PRACTICE ANOTHER 0n the basis of data from a study conducted by the University of Colorado School of Medicine at Denver, the percentage of women receiving regional analgesia (epidural pain relief) during childbirth at small hospitals between 1981 and 1997 can be modeled as p(x) = 0.73(1.2912X) + 8 percent where x is the number of years since 1980.+ Suppose that the yearly number of women giving birth at a small hospital in southern Arizona can be modeled as b(x) = 0.026x2 3.842x + 538.868 women where X is the number of years since 1980. (a) Write the equation and its derivative for the number of women receiving regional analgesia while giving birth at the Arizona hospital. f(x) = women j X f'(x) = women per year i X (b) Was the percentage of women who received regional analgesia while giving birth increasing or decreasing in 1997? increasing 0 decreasing (cl Was the number of women who gave birth at the Arizona hospital increasing or decreasing in 1997