10:49 PM Sun Mar 20 80% Equations an Paraphrasing T X Internal Messac X Mathway | Calc X Mod 4 Exam X C For The Functic X Course Hero X + mylab.pearson.com 7 . . . MAT125C04 Survey of Calculus: MA1 (Carol Kramer) SP22 Rebeca Palacio 03/20/22 10:49 PM This test: 20 point(s) = Test: Mod 4 Exam Question 15 of 20 possible This question: 1 Submit test point(s) possible The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by K(x) = - 3x x2 + 1 a. Find the time at which the concentration is a maximum. b. Find the maximum concentration. a. The concentration will be maximized at x = hour(s). b. The maximum concentration is %. Time Remaining: 01:09:24 Next