Solve.The mosquito population within a defined area is estimated at 85 million. Due to weather conditions, it is projected that this population will increase by 20%. Find the increase and the projected population.
A. increase: 1700 million mosquitos
projected population: 1785 million mosquitos
B. increase: 17 million mosquitos
projected population: 102 million mosquitos
C. increase: 17 million mosquitos
projected population: 68 million mosquitos
D. increase: 1700 million mosquitos
projected population: 1615 million mosquitos
Answer: B
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local maximum at x = 3; local minimum at x = -3 ; concave up on (0, -3) and (3, ?); concave down on (-3, 3) B. Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, -3) and (3, ?); concave down on (-3, 3) C. Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, ?); concave down on (-?, 0) D. Local minimum at x = 3; local maximum at x = -3 ; concave down on (0, ?); concave up on (-?, 0)
Reduce:
Graph the function.y = -4 tan 
A. 
B. 
C. 
D. 
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 5
D. 