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What is the value of the first term if the seventh term is twenty?
Wiki User
∙ 10y ago
In order to answer that, we would need to know the rule that gets you from one
term to the next. And if you don't tell us what the rule is, then we would need at
least three consecutive terms in order to figure it out. We don't have any of that,
so we're free to choose any rule, and every rule results in a different answer to the
question, so there's a possibility of an infinite number of different correct answers.
To put it another way, I've got a feeling that if you pick any number at all, a rule
can be found that makes it a correct answer to the question.
Examples:
-- First term is 14. (Add 1 to a term to get the next one.)
-- First term is 8. (Add 2 to a term to get the next one.)
-- First term is -4 . (Add 4 to a term to get the next one.)
-- First term is 0.3125 . (Double a term to get the next one.)
-- First term is 237.549864 . (The next term is 10(0.01 xthis term) .)
-- First term is 358.88544 . (Divide a term by the Golden Ratio to get the next one.)
Wiki User
∙ 10y ago
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If the seventh term of an arithmetic progression is 15 and th twelfth term is 17.5 find the first term?
There are 5 common differences between seventh and twelfth terms, so the CD is 2.5/5 ie 0.5. First term is therefore 15 - 6 x 0.5 = 12.
What is the value of the seventh term in the sequence 1 -3 -7 -11 -15?
every next term is 4 smaller than previous so 7th term = -23
What is the common difference when the first term of a sequence is 12 and the seventh term is 36 and the last term is 144?
If the first term is 12 and the seventh term is 36, then we have gone up 36-12 in the space of 6 term changes. This is 24 per 6 changes, which can be written as the division 24/6. This works out as 4. Thus the common difference in the sequence is 4.
What is the analogies for twenty is to ten as six is to?
There are at least two possibilities for this analogy: The second term is half the first, or the second term is the first term minus 10. The first possibility results in 6:3 and second in 6:-4.
What is the twenty-twenty?
It sets the term limits for the president.
What is the value of the twenty third term in the sequence ten eight six four?
-34
If the seventh term of an arithmetic progression is 15 and th twelfth term is 17.5 find the first term?
There are 5 common differences between seventh and twelfth terms, so the CD is 2.5/5 ie 0.5. First term is therefore 15 - 6 x 0.5 = 12.
What is the value of the seventh term in the sequence 1 -3 -7 -11 -15?
every next term is 4 smaller than previous so 7th term = -23
What is the common difference when the first term of a sequence is 12 and the seventh term is 36 and the last term is 144?
If the first term is 12 and the seventh term is 36, then we have gone up 36-12 in the space of 6 term changes. This is 24 per 6 changes, which can be written as the division 24/6. This works out as 4. Thus the common difference in the sequence is 4.
What term describes the the state of the American economy in the first decade of the twenty-first century?
recession
What term describes the state of the American economy in the first decade of the twenty-first century?
recession
What term describe the state of the American economy in the first decade of the twenty-first century?
recession
What term describes the state of the American economy in the first decade of the twenty first century?
recession
Which term describes the state of the American economy in the first decade of the twenty-first century?
recession
What died the twenty-first amendment appeal?
The 22nd limits the term of the president. There has been no appeal.
What is the analogies for twenty is to ten as six is to?
There are at least two possibilities for this analogy: The second term is half the first, or the second term is the first term minus 10. The first possibility results in 6:3 and second in 6:-4.
What is the twenty-twenty?
It sets the term limits for the president.
