Math+ check!
posted by bob!
oka so the question is as follows:
for the geometreic sereis 8+48+288+... find the sum of the first ten terms, s 10
so I would use the formula:
sn= a(1r^n)/ 1r
were
a= 8
r= 48
n= 10
8(1(48)^10)/148
I get lost I don't know how to arrive to the answer from here! but is the rest correct?
No. r is 6. Notice 8*6= 46, 48*8= 288, etc.
Other wise, it is ok.
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