Solve the problem.The rational function C(x) = 
, 0 ? x < 100describes the cost, C, in millions of dollars, to inoculate x% of the population against a particular strain of the flu. Determine the difference in cost between inoculating 70% of the population and inoculating 50% of the population. (Round to the nearest tenth, if necessary.)
A. $0.8 million
B. $0.9 million
C. $186.7 million
D. $186.6 million
Answer: C
Mathematics
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Find an equation for the line with the given properties.Parallel to the line y = -2x; containing the point (2, 2)
A. y = -2x B. y = -2x + 6 C. y - 2 = -2x - 2 D. y = -2x - 6
Mathematics
Identify the interval where f is increasing or decreasing, as indicated. Express your answer in interval notation.f(x) = -5x2 + 10x - 8; decreasing
A. [-1, ?) B. [1, ?) C. (-?,1] D. (-?, -1]
Mathematics
Determine whether the triangles are congruent. If they are congruent, state why.
A. not congruent B. congruent; SSS C. congruent; SAS D. congruent; ASA
Mathematics
Graph the function over a one-period interval.y = - 
cos
+ 3
A. 
B. 
C. 
D. 
Mathematics