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AP Environmental Science/Unit 5: Land and Water Use
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Pesticide Application Exponential Model

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The amount of pesticide applied per application, A(t) in grams, is modeled by the function A(t)=10e−0.2tA(t)=10e^{-0.2t}, where t is the time in days after planting. All of the following statements about this model are true EXCEPT:

A

The rate at which the pesticide amount decreases is proportional to the amount remaining.

B

The model shows that the pesticide amount per application declines exponentially with time.

C

The function indicates that applying pesticide later results in higher amounts per application.

D

At t = 0, the initial application amount is 10 grams.

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