![\bf 81~~,~~\stackrel{81-27}{54}~~,~~\stackrel{54-27}{27}~~,~~\stackrel{27-27}{0}~~,~...\qquad \qquad \stackrel{\textit{common difference}}{d = -27} \\\\[-0.35em] ~\dotfill\\\\ n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} a_n=n^{th}\ term\\ n=\textit{term position}\\ a_1=\textit{first term}\\ d=\textit{common difference}\\ \cline{1-1} a_1=81\\ d=-27 \end{cases} \\\\\\ a_n=81+(n-1)(-27)\implies a_n=81-27n+27\implies a_n=108-27n](/tpl/images/0175/4982/8c2c7.png)
= a₁ + (n - 1)dFind an explicit formula for the arithmetic sequence:
81, 54, 27, 0
...
Mathematics, 18.08.2019 01:10 jby
Find an explicit formula for the arithmetic sequence:
81, 54, 27, 0
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 19:30
Identify the number as a rational or irrational.explain. 127
Answers: 1
Mathematics, 21.06.2019 20:30
Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points
Answers: 1
Mathematics, 21.06.2019 21:00
Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d.y +14z
Answers: 1
You know the right answer?
Questions
Social Studies, 20.09.2020 14:01
History, 20.09.2020 14:01
Mathematics, 20.09.2020 14:01
