Analyze the explicit formula of the arithmetic sequence an=3.7+1/2n and report the ninth term, rounded to the nearest tenth.
To find the ninth term of the arithmetic sequence given by the explicit formula $a_n=3.7+\frac{1}{2}n$, we can substitute n=9 into the formula:
$a_9=3.7+\frac{1}{2}(9)$
$a_9=3.7+4.5$
$a_9=8.2$
Therefore, the ninth term of the arithmetic sequence is 8.2 when rounded to the nearest tenth.