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A cell count follows y = e^(3x). The count changes at the rate
A3 e^x
Be^(3x)
C3x e^(3x)
D3 e^(3x)
Answer & Solution
Correct answer: D. 3 e^(3x)
The chain rule gives e^(3x) times the derivative of 3x, which is 3.
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