Solve the problem.The concentration of a certain drug in the bloodstream x hr after being administered is approximately 
Use the differential to approximate the change in concentration as x changes from 1 to 1.52.
A. 0.42
B. 0.14
C. 0.18
D. 0.20
Answer: B
Mathematics
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Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
For the given function expressed verbally, give a symbolic representation.To convert x square feet to y square yards, divide x by 9. Let y = f(x).
A. f(x) = 9/x B. f(x) = 9x C. f(x) = x - 9 D. f(x) = x/9
Mathematics
Subtract.
- 
A. 
y + 
B. - 
y + 
C. - 
y + 
D. 
y + 
Mathematics
Solve the equation.x-2 - x-1 - 30 = 0
A. {-6, 5}
B. 
C. 
D. {6, -5}
Mathematics