A certain species of tree grows an average of 3.8 cm per week. Write an equation for the sequence that represents the weekly height of this tree in centimeters if the measurements begin when the tree is 5 meters tall.
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Expert's answer
2014-05-21T04:36:40-0400
In this case we have the arithmetic progression with the first term 5 and step 3.8. The n-th term of this progression can be written as a_n = a_1 + (n-1)d = 5+ (n-1)*3.8 where n is the number of weeks.
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