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# tree growth percentage

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In a forest planted in a certain type of pine trees with a height of 1.7 m. For they are 15 years old, grows trees with a height 17.3% per year.

a) Establish a formula that describes the tree height as a function of number of years after planting.

b) How high is a 7 year old wood, according to the model?

c) What is the growth percentage in height over 3 years according to the model?

##### Solution Summary

In this solution, we create a formula for determining tree growth and then apply the formula to a series of questions.

##### Solution Preview

a) The tree height after t years is given by the formula

y=y(0)(1+r)^t, where ...

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