What is r for the geometric series with s5=484, a1=4 and a5=324

r = 3

Step-by-step explanation:

The geometric series is :

a1=4 and a5 is the fifth element of the summation, that is:

Either r = 3 or r = -3

s5 is the summation until the 5th element, that is:

With r = 3

With r = -3

Therefore, r = 3

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step-by-step explanation:

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )