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. 1,200 butterflies
B. 12,000 butterflies
C. 801 butterflies
D. 440 butterflies


Answer: D

Mathematics

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Find an equation for the tangent to the curve at the given point.y = , (5, 31.25)

A. y = x - 
B. y = x - 
C. y = x + 
D. y = x + 

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Find the derivative of the function.y = 5 tan3x

A. 15 tan3x sec x B. 15 tan2x sec2x C. 15 tan2x D. 15 tan4x

Mathematics

Multiply and simplify. ? 

A. 3
B. 3
C. 3
D. 6

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Evaluate the expression, if possible.1/4

A. -5
B. 5
C.
D. - 

Mathematics