The concentration, in milligrams per deciliter, of a drug in the bloodstream t hours after it is administered is
?
.
When is the maximum concentration achieved?
?
A. After 6 hours
B. After 2.84 hours
C. After 5 hours
D. After 1.84 hours
Answer: C
Mathematics
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Graph the ellipse and locate the foci.16x2 + 4y2 = 64
A. foci at (0, 2
) and (0, -2
)
B. foci at (2
, 0) and (-2
, 0)
C. foci at (
, 0) and (-
, 0)
D. foci at (2
, 0) and (-2
, 0)
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Add or subtract terms whenever possible.-9
+ 6
- 3
A. -69
B. -9
C. -27
D. 69
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Evaluate.Find (f ? g)(8) given f(x) = -3x + 5 and g(x) = 6x2 - 6.
A. -9216 B. -7296 C. -9072 D. -7182
Mathematics
Round the money amount to the nearest cent or dollar as indicated.$13.66, nearest dollar
A. $20 B. $13 C. $14 D. $13.7
Mathematics