Solve the problem.The concentration C (arbitrary units) of a certain drug in a patient's bloodstream can be modeled using 
where t is the number of hours since a 500 milligram oral dose was administered. Using the TABLE feature of a graphing utility, find the time at which the concentration of the drug is greatest. Round to the nearest tenth of an hour.
A. 5.2 hours
B. 6 hours
C. 6.7 hours
D. 7.5 hours
Answer: A
Mathematics
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Determine the most appropriate metric unit to go in the blank. Choose from L, mL, kg, g, and mg.The baby weighs 3.4 
.
A. mL
B. kg
C. g
D. L
E.
| mg |
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Find the graph of the equation.
?
?
A. ?
B. ?
C. ?
D. ?
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Evaluate the expression x + y for the given values of the variables.x = -32, y = 0
A. 0 B. -320 C. 32 D. -32
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Graph the function. State whether it is increasing, decreasing, or constant..F(x) = 1
A. constant
B. constant
C. constant
D. decreasing
Mathematics