Multiple Choice
The percent of concentration of a certain drug in the bloodstream x hr after the drug is administered is given by K(x) = 4x . At what time is the concentration a maximum?
X2 + 49
A) 4 hr
B) 4.9 hr
C) 7 hr
D) 2.5 hr
Correct Answer:
Verified
Correct Answer:
Verified
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