The sum of the first 3 terms of a geometric series is 171 and the common ratio is 2/3.
2 answers:
Answer:
81
Step-by-step explanation:
let the terms be a,ar,ar²
r=2/3
a+a(2/3)+a(2/3)²=171
multiply by 9
9a+6a+4a=171×9
19 a=171×9
a=(171×9)/(19)
a=9×9=81
Let's find b₁
Answer: b₁=81
You might be interested in
Hello,
Answer:
1.06 sq inches
Step-by-step explanation:
its reasonable come on now
Answer:
i say 7/100
Step-by-step explanation:
if the 100 tickets is your total then its your denominator
the 7 is represents the tickets what are winners
Answer:
The answer is b I'm not to sure but I think its b
Answer:
yes
Step-by-step explanation: