Solve the problem.The concentration, in parts per million, of a particular drug in a patient's blood x hours after the drug is administered is given by the functionf(x) = -x4 + 13x3 - 54x2 + 84xHow many hours after the drug is administered will it be eliminated from the bloodstream.
A. 6 hours
B. 19 hours
C. 7 hours
D. 12 hours
Answer: C
Mathematics
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Find n(A) for the set.A = {0, 2, 4, 6, 8}
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When velocity is constant and negative, what can be said about directed distance?
A. Directed distance is a linear function with negative slope. B. Directed distance is a linear function with positive slope. C. Directed distance is constant and negative. D. Directed distance is constant and positive.
Mathematics
Find the quotient.
÷ 
A. 
B. - 
C. - 
D. 
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Convert as indicated. If necessary, round to two decimal places.11 ounces to grams
A. 4.95 g B. 311.85 g C. 0.44 g D. 24.2 g
Mathematics