Solve.A population is growing at a rate proportional to its size. If the population is 139,000 initially and 191,000 after 9 years, how long will it take the population to double?
A. 18.3 years
B. 19.6 years
C. 21.0 years
D. 21.4 years
Answer: B
Mathematics
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Find the extreme values of the function and where they occur.y = x3 - 3x2 + 1
A. None B. Local minimum at (2, -3). C. Local maximum at (0, 1), local minimum at (2, -3). D. Local maximum at (0, 1).
Mathematics
Solve the problem.A boat can go 54 mph in still water. It takes as long to go 160 miles upstream as it does to go downstream 200 miles. How fast is the current?
A. 5 mph B. 1 mph C. 6 mph D. 4 mph
Mathematics
Use the graph of the rational function f(x) to complete the statement.As x?3+, f(x)? 
. 
A. 0 B. +? C. 3 D. -?
Mathematics
Decide whether the given functions are inverses.f = {(1, 1), (-2, -4), (10, -4), (12, 4), (0, 9)}g = {(1, 1), (4, -2), (-4, 10), (4, 12), (9, 0)}
A. No B. Yes
Mathematics