Answer:
the answer is 81/8
alternative forms: 10 1/8 or 10.125
Step-by-step explanation:
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Answer:
In English grammar, substitution is the replacement of a word or phrase with a filler word such as "one", "so", or "do" in order to avoid repetition.
Step-by-step explanation:
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Answer:
39364.
Step-by-step explanation:
I guess its an = 4*(3)^(n-1)
r = 3, a1 = 4 and n = 9
Sum of n terms = a1 * (r^n - 1) / (r - 1)
so S9 = 4 *(3^9 - 1) / (3 - 1)
= 4 * (19683 - 1) / 2
= 78728/2
= 39364.
