Question

Find the next two terms in the sequence.

9.8, 0.7, -8.4, -17.5, ...

-35, -70

-26.6, - 35.7

26.6, 35.7

18.9, 28



Find the exact value of the eighth term of the geometric sequence:
648, 216, 72, 24...

.30

8/27

8/2481

8/9



Find the next three terms of the geometric sequence:
-3, 6, -12, 24...

-36, 48, -60

-34, 58, -92

48, -96, 192

-48, 96, -192

Answer 1

The first one subtracts 9.1 --> -26.6, -35.7
The second one subtracts 35 --> -105, -140
The third one subtracts 9.1 --> -44.8 , -53.9
The fourth one adds 9.1 --> 44.8 , 53.9
The fifth one adds 9.1 --> 37.1 , 46.2

I am sorry I do not have time to do the rest, but just find a pattern between the given terms and apply that to the next terms

Answer 2

the first one is arithmetic with CD = -9.1 so the answer is B

Third one is D

Second question:

a1 = 648 and r = 1/3 so 8th term = 648 * (1/3)^7 = 8/27