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karly8108
03.01.2020 •
Mathematics
Devise the exponential growth function that fits the given data, then answer the accompanying question. be sure to identify the refernce point (t=0) and units of time.between 2003 and 2008, the average rate of inflation in a certain country was about 4% per year. if a cart of groceries cost $120 in 2003, what will it cost in 2013 assuming the rate of inflation remains constant?
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Ответ:
And that would be the approximately cost for 2013.
Step-by-step explanation:
For this case we need to define some notation first.
A= population , t= represent the years after 2003, C= constant for the exponential model.
The starting point t=0 correspond to the year of 2003.
On this case we are assuming the following exponential model:
The initial value on this case is for t=0 A(t=0)= 120 and if we replace we got this:
And then the model is:
Now we need to determine the value for C. Since we know that inflation increase 4% per year we have that after one year we have 1.04 times the value of the original value, and we have this equation:
And we got this:
Applying ln on both sides we got:
So then our model is given by:
For 2013 we have that t=10 since 2013-2003 = 10 after 2003, if we replace t=10 we got this:
And that would be the approximately cost for 2013.
Ответ:
please don't report my dog just died
Step-by-step explanation: