SOLUTION: A population of bacteria is changing exponentially according to the function below. How can you describe the bacteria population? Select all possible correct answers. B(t) = 520

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Question 897109: A population of bacteria is changing exponentially according to the function below. How can you describe the bacteria population? Select all possible correct answers.
B(t) = 520(0.4)1.8t + 11
A. The population is negative
B. The population is decaying
C. The population is growing
D. The population is approaching a constant value
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The population approaches +11+
As +t+ increases, +.4%5E%281.8t+%29+
approaches zero, so +520+%2A+.4%5E%281.8t+%29+
approaches zero
Suppose +t+=+6+%2F+1.8+
+.4%5E%28+1.8t+%29+=+.4%5E6+
+.4%5E6+=+.004096+
+520%2A.004096+=+2.13+
So, +B%28t%29+ is approaching +11+
(D) is the answer