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Hunter-Best [27]
3 years ago
13

The sum of an infinite geometric series is 1,280, while the first term of the series is 160. What is the common ratio of the ser

ies?
Mathematics
1 answer:
Arlecino [84]3 years ago
7 0
The sum is 160/(1-r)=1280 where r is the common ratio,
1/(1-r)=1280/160=8
Inverting we get 1-r=1/8, r=7/8.
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5 0
3 years ago
Read 2 more answers
Find S15 for the geometric series 72 + 12 + 2 + 1/3 +…
Gemiola [76]
S1 = 72
S2 = 12 = 72*(1/6)
S3 = 2 = 72*(1/6)^2
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S15 = 72*(1/6)^14 = 9.18*10^(-10)
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3 years ago
If I pay 10% extra of my regular charge each month on my bill of $35.00, how long until I have built up a full month's credit
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7 0
2 years ago
Algebra public opinion polls reported in newspapers are usually given with a margin of error. for example, a poll with a margin
sweet-ann [11.9K]

Answer:

Minimum percent of the vote that candidate Towne is expected to recieve:

m=51% - 6.3% * 51% =47.787%

Maximum percent of the vote that candidate Towne is expected to recieve:

M=51% + 6.3% * 51% = 54.213%

Solution:

Margin of error: E=6.3%

Minimum percent of the vote that candidate Towne is expected to recieve:

m=51% - E * 51%

m=51% - 6.3% * 51%

m=51% - 51% * 6.3 / 100

m=51% - 3.213%

m=47.787%

Maximum percent of the vote that candidate Towne is expected to recieve:

M=51% + E * 51%

M=51% + 6.3% * 51%

M=51% + 51% * 6.3 / 100

M=51% + 3.213%

M=54.213%


8 0
3 years ago
What is the answer to 2/3j-1/6=1/2?
Elodia [21]
It has already given you the answer.
3 0
3 years ago
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