Question

4.
Is the sequence 81, 3, one-ninth, . . . arithmetic, geometric, neither, or both? (1 point)

arithmetic
geometric
neither
both

Answer 1

What is 81 - 3? What is 3 - 1/9? If the differences are equal, it's an arithmetic series.
What is 81/3? What is 3/(1/9)? If the quotients are equal, it's a geometric series.
If both the differences are not equal and the quotients are not equal, it's neither.

Answer 2

Geometric is what i though.

Ty so much.

I just wanted a second answers to make sure i was right. Its pretty bad i can do 10th,9th,8th, grade math for people. And i cant do this. :p

I got to 60 smart score in 2 weeks so Ive been busy.