Answer:
The 19th term is 99.
Step-by-step explanation:
We can write a direct formula and use it to find the 19th term. Recall that the direct formula for an arithmetic sequence is given by:
Where <em>a</em> is the initial term and <em>d</em> is the common difference.
Since the first term is 9 and the common difference is 5:
To find the 19th term, let <em>n</em> = 19. Thus:
And evaluate:
The 19th term is 99.