Solve the problem.The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, 
where t is the number of minutes after injection of the drug. When will the drug be at its highest concentration? Approximate your answer rounded to two decimal places.
A. t = 4 minutes after the injection is given
B. t = 3.65 minutes after the injection is given
C. t = 0.55 minutes after the injection is given
D. at the time of injection
Answer: C
Mathematics
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x 3 6 9 12 y 15.94 46.18
What will be an ideal response?
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Use a calculator to find the following to four decimal places.
A. 11.6952 B. 272.9563 C. 27.2956 D. -2.3352
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Use the vectors in the figure below to graph the following vector. 
3w 
A. 
B. 
C. 
D. 
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Find the measure of the missing angle(s).
A. 28° B. 62° C. 118° D. 152°
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