Solve the problem.The polynomial 
measures the concentration of a dye in the bloodstream x seconds after it is injected. Does the concentration increase between 13 and 14 seconds?
A. No
B. Yes
Answer: B
Mathematics
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Use a strictly graphical approach to solve the equation over the interval [0, 2?). Express solutions to the nearest hundredth. sin x = 1 - 2cos x
A. {1.57, 5.64} B. {0.64, 4.71} C. {2.50, 4.71} D. ?
Mathematics
Solve the equation for the indicated variable.5r + 1 = 9s for r
A. 
s - 1
B. 
s + 1
C. 9s - 
D. 
Mathematics
Sketch the surface z = f(x,y).f(x, y) = x2
A. 
B. 
C. 
D. 
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 
, g(x) = 
A. Yes B. No
Mathematics