30
what is the sum of the first six terms of the series?
48 - 12 + 3 - 0.75 +

The sum of the first six terms is 38.39

Step-by-step explanation:

This is a geometric sequence since the common difference between each term is

Thus,

To find the sum of first six terms, we need to find the fifth and sixth term of the sequence.

To find the fifth term:

The general form of geometric sequence is

To find the fifth term, substitute in

To find the sixth term, substitute in

To find the sum of the first six terms:

The general formula to find Sn for is

Thus, the sum of first six terms is 38.39

i would need to see the dot plot : )