Answer
$-1.7,-2.0,-2.3,-2.6,-2.9,-3.2$
Work Step by Step
Formula to calculate the nth term of an arithmetic sequence is: $a_n=a_1+d(n-1)$
Here, $a_1: $ First term and $d=$ common difference
Since, we have $a_1=-1.7$
Use a recursion formula to find the remaining five terms.
Then $a_2=a_1-0.3=-1.7-0.3=-2.0;\\a_3=a_2-0.3=-2.0-0.3=-2.3;\\a_4=a_3-0.3=-2.3-0.3=-2.6;\\a_5=a_4-0.3=-2.6-0.3=-2.9;\\a_6=a_5-0.3=-2.9-0.3=-3.2$
Hence, the first six terms are: $-1.7,-2.0,-2.3,-2.6,-2.9,-3.2$