The sum of any geometric sequence, (technically any finite set is a sequence, series are infinite) can be expressed as:
s(n)=a(1-r^n)/(1-r), a=initial term, r=common ratio, n=term number
Here you are given a=10 and r=1/5 so your equation is:
s(n)=10(1-(1/5)^n)/(1-1/5) let's simplify this a bit:
s(n)=10(1-(1/5)^n)/(4/5)
s(n)=12.5(1-(1/5)^n) so the sum of the first 5 terms is:
s(5)=12.5(1-(1/5)^5)
s(5)=12.496
as an improper fraction:
(125/10)(3124/3125)
390500/31240
1775/142
Answer:
answer 4 im pretty sure
Step-by-step explanation:
i did da math
Answer:
3/8
Step-by-step explanation:
convert 1/4 to 2/8 and then subtract and that would equal the distance. distance of 3/8 hope this helps
Answer:
x = 1
Step-by-step explanation:
The answer is 3.96, Because you take 18% of $22, and then you have your answer
You’re welcome