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A flexible cable hanging between two poles is modeled by H (a )= 20 + 25 cosh 25 , where the height is in feet. Find the slope of the cable at the point where X = 20 . Show all your work and give a decimal rounded to 3 decimal places. Your Answer: Answer Question 11 (5 points) Listen The amount of a medication, in mg, in the bloodstream, t hours after being administered, is modeled by A (t) = 500e 0.2t. Find the rate of change of the amount of medication at t=21 hours. Show all your work on your paper. Give a simplified answer in terms of e on paper, including units. Find an approximation rounded to three decimal places and enter it in D2L. Do NOT include the units in D2L