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What is the 8th term of this arithmetic sequence?

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What is the 8th term of this arithmetic sequence?

The 8th term in the sequence, a8 , is 13.

What is the 8th term of the arithmetic sequence whose 1st term is 4 and the common difference is?

Expert Answer we have to find the eighth term of the arithmetic sequence whose first term is 4 and whose common difference is -7. where a1 is the first term an d is the common difference.

What is the 11th term of the sequence?

Explanation: The 11th term means there are 10 gaps in between the first term and the 11th term. Each gap has a difference of +4, so the 11th term would be given by 10 * 4 + 1 = 41.

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How do you find the 25th term of an arithmetic sequence?

An easier way to see this equation is: Y = 4X – 9. To find the 25th term, just plug in 25 for X. Y = 4(25) – 9, making the 25th term in this sequence 91.

What is the 8th term of the sequence 8 6?

Hence, 8th term = 8 + 13 = 21.

How do you find the 25th term of AP?

=a+24d=(-5)+(24×52)=-5+60=55. Hence, 25th term = 55.

What is the sum of the first 15 terms of the arithmetic sequence?

Thus, the sum of the first fifteen terms in the arithmetic sequence is 975 .

What is the 8th term and 20th term of the sequence?

In an arithmetic sequence the 8th term is twice the 4th term and the 20th term is 40. Find the common difference and the sum of the terms from 8th to the 20th inclusive..

How do you find the first term in an arithmetic sequence?

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Now, Arithmetic Sequence Formulas. n th Term Formula. a n = a 1 + (n – 1)d. Sum of First n Terms. S n = n/2 (first term + last term) Where, a n = n th term that has to be found. a 1 = 1 st term in the sequence.

How to find the sum of n terms in a sequence?

1 a n = n th term that has to be found 2 a 1 = 1 st term in the sequence 3 n = Number of terms 4 d = Common difference 5 S n = Sum of n terms

How do you find the first term if you have two terms?

If I had two terms I could use the n − th term formula to calculate the first term. For example: The second term of an arithmetic sequence is 4. The fifth is 10. Find the first term. In this task we have 2 terms given: a2 = 4 and a5 = 10. We can use the n −th term formula to build a system of equations: {a1 + d = 4 a1 + 4d = 10.