Solve the problem.The logistic growth function f(t) = 
describes the population of a species of butterflies 
after they are introduced to a non-threatening habitat. How many butterflies are expected in the habitat after 15 months?
A. 450 butterflies
B. 277 butterflies
C. 561 butterflies
D. 8400 butterflies
Answer: B
Mathematics
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Solve the problem.Use Newton's Law of Cooling to find the temperature in the following case. A glass of water with a temperature of 7°C is placed in a room with a temperature of 20°C. One minute later the water has warmed to 8°C. After how many minutes does the water have a temperature that is 80% of the ambient temperature?
A. ? 22 min B. ? 26 min C. ? 15 min D. ? 18 min
Mathematics
Simplify the square root.
A. c B. |c| C. c2 D. |c2|
Mathematics
Simplify.
4
A. 
B. 
C. 
D. 
Mathematics
Graph the equation and give the coordinates of the vertex.y = (x - 2)2
A. (0, 2)
B. (2, 0)
C. (0, -2)
D. (-2, 0)
Mathematics