Perform the indicated operations and simplify.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: B
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Determine whether the given expression is a monomial (Yes or No). For those that are monomials, state the coefficient and degree.
A. yes; coefficient 1; degree -5 B. no C. yes; coefficient 5; degree 1 D. yes; coefficient 1; degree 5
Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Simplify.
A. y
B. - 
C. - 
D. -y
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 by A(t) = 
, where Ao is the initial amount of the medication given. Assume that an initial amount of 25.0 cc is injected. According to this function, does the medication ever completely leave the bloodstream?
A. Yes B. No