6 Time Taken: Mins Secs The effectiveness of a certain medical injection is modeled by E(t) = 0.03t(60 – t), where t is time in minutes and E is a measure of concentration in the bloodstream. Effectiveness readings above 18 are satisfactory and readings above 35 are dangerous. How many minutes after the first injection are the readings satisfactory and how many minutes after the first injection do they become too low? Express your answer in exact form or as a decimal number rounded to two decimal places. Answer Correct Difficulty level: High Open Tutor Readings become sufficient at 12.68 minutes Next minutes Readings become too low again after 47.32
6 Time Taken: Mins Secs The effectiveness of a certain medical injection is modeled by E(t) = 0.03t(60 – t), where t is time in minutes and E is a measure of concentration in the bloodstream. Effectiveness readings above 18 are satisfactory and readings above 35 are dangerous. How many minutes after the first injection are the readings satisfactory and how many minutes after the first injection do they become too low? Express your answer in exact form or as a decimal number rounded to two decimal places. Answer Correct Difficulty level: High Open Tutor Readings become sufficient at 12.68 minutes Next minutes Readings become too low again after 47.32
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 94E
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