Solve the problem.After an injection, the amount of a medication A in the bloodstream decreases with time t, in hours. Suppose that under certain conditions A is given byA(t) = 
, where Ao is the initial amount of the medication given. Assume that an initial amount of 20.0 cc is injected. According to this function, does the medication ever completely leave the bloodstream?
A. No
B. Yes
Answer: A
Mathematics
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Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. No x-intercepts, no y-intercepts ;
B. x-intercept: (0, 0) , y-intercept: (0, 0) ;
C. No x-intercepts, y-intercept: (0, -1) ;
D. x-intercept: (0, 0) , y-intercept: (0, 0) ;
Mathematics
A line passes through the point 
and has slope 1.28. For what y value does the point 
lie on the line?
?
A. 
B. ?
C. ?
D. ?
Mathematics
Factor the polynomial completely.36 - (x + 5y)2
A. (6 + 5xy)(6 - 5xy) B. (6 + x + y)(6 - x - y) C. (6 + x - 5y)(6 - x - 5y) D. (6 + x + 5y)(6 - x - 5y)
Mathematics
Integrate the function.
A. 
sin4 x - 
cos8 x + C
B. 
+ C
C. 
sin6 x - 
sin8 x + C
D. 
cos4 x - 
cos6 x + C
Mathematics