Solve the problem.The rate of change in the concentration of a drug with respect to time in a user's blood is given by
where D(t) is dosage at time t and k is the rate at which the drug leaves the bloodstream. If D(t) is a constant D, and 
solve the differential equation to find a formula for C(t), the concentration at time t.
A. C(t) = 
B. C(t) = 
C. C(t) = 
D. C(t) = 
Answer: D
Mathematics
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Use the given values of a and b and express the given limit as a definite integral.
?xk, a = -?/5, b = 0
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Mathematics
Use the FOIL method to find the product. Express the product in descending powers of the variable.(x - 2)(x2 + 6)
A. x3 + 6x2 - 2x - 12 B. x2 + 4x - 12 C. -2x2 + x - 12 D. x3 - 2x2 + 6x - 12
Mathematics
Consider the functions f and g as shown in the graph. Answer the question.What is the value of (f + g)(3)?
A. 0 B. 1 C. 3 D. -1
Mathematics
Solve by the method of your choice.6x2 = -12x - 4
A. 
B. 
C. 
D. 
Mathematics