Question

PLEASE HELP 25 POINTS!

Answer 1

Hey!

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Answer:

r = 2

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Solution:

So we know that s2 = 8 and s4 = 32.

We need to find s1!

32 / 8 = 4

8 / 4 = 2 (ratio is 2)

8 / 2 = 4

32 / 2 = 16

s1 = 4

s3 = 16

Each number is multiplied by 2.

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Hope This Helped! Good Luck!

Answer 2

The common ratio r = 2.

Explanation:

Now s2 = a1r and s4 = a1r^3 where a1 = first term and r = common ratio so

s4 / s2 = a1r^3 / a1r = r^2 = 32/8

r^2 = 4

r = 2.