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Vrijgo
Answered

Solve for the common ratio and the next two terms for each geometric sequence.
1. 7, 21, 63, 189, ...
2. 2.6, 24, 36, 384, ...
3. 5, -10, 20, -40, ...
4. 12, 1, 2, 4, ...
5. -1, 4, -16, 64, ...​​

Sagot :

1.

common ratio(r)

=3

next two terms:

567

1701

3.

common ratio(r)

= -2

next two terms

=80,160

5.

common ratio(r)

= -4

next two terms

= -256,1024

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