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) ;

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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. ?

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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)

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Integrate the function.

A.  sin4 x -  cos8 x + C
B.  + C
C.  sin6 x -  sin8 x + C
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