Solve the problem.In September 1998 the population of the country of West Goma in millions was modeled by 
At the same time the population of East Goma in millions was modeled by 
In both formulas x is the year, where 
corresponds to September 1998. Assuming these trends continue, estimate what the population will be when the populations are equal.
A. 14 million
B. 1 million
C. 16 million
D. 15 million
Answer: C
Mathematics
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?
A. x = -3 or -2 B. x = -3 or 2 C. x = -3 D. x = 4
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Use a fraction to represent the shaded area of the figure.
A. 
B. 
C. 
D. 
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Graph the equation.y = -5|x|
A. 
B. 
C. 
D. 
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The function f is one-to-one. Find its inverse.f(x) = x2 + 1, x ? 0
A. f-1(x) = 
, x ? -1
B. f-1(x) = 
- 1, x ? 0
C. f-1(x) = 
, x ? 1
D. f-1(x) = 
- 1, x < 0
Mathematics