What is the sum of the first 11 terms of the sequence for which a3 = 13 and a11 = 25?

Q: Find the sum of the first 25 terms of the arithmetic sequence: 7, 19, 31, 43, .....

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Q: Find the sum of the first 50 terms of the arithmetic sequence -5, -3, -1, 1, ..

A: You have posted multiple questions. As per the instruction, we will be answering only the first…

Q: The first five terms of the sequence  are: 5,

A:

Q: Find the n" term a, of a sequence whose first four terms are given. 9 10 11 -- -- 4' 8' 12' 16

A: Given:-84,-98,-1012,-1116,....

Q: List the first 10 terms of the sequence whose nth term is 3 raise to n − 2 raise to n.

A: Given  Sn=3n-2n

Q: Find the sum of the first eight terms of the arithmetic sequence in which the fourth term is 9 and…

A: a4=9  &  d=-5 Now consider, a4=9⇒a+3d=9⇒a+3-5=9⇒a=24

Q: Find the sum of the first 14 terms of the geometric sequence: - 3/2, 3, -6, 12, . . . .

A: The given geometric sequence is -32,3,-6,12,.. here the first term of the sequence is -32. find…

Q: Find the sum of the first 100 terms of the sequence: 4, -2, -8, -14, . . . .

A: GIVEN SEQUENCE,                         4, -2,-8,-14.......         LET…

Q: Find the sum of the first 7 terms of the geometric sequence: 8, 4, 2, 1, . . . .

A: To Find The sum of the first 7 terms of the geometric sequence: 8,4,2,1,…. Concept: Sum of first…

Q: Find the sum of the first 14 terms of the arithmetic sequence. 5, 10, 15, 20, 25, ...

A: Given:

Q: find a formula for the nth term of the sequence. -3, -2, -1, 0, 1,...

A: Arithmetic progression: If in a sequence, the difference of any two successive terms is a constant…

Q: Find the first four terms and the eighth term of the sequence.

A: We have the given expression as 4+(0.1)n   We have to find   First four terms and eight term

Q: Find the sum of the first 37 terms of the arithmetic sequence. 29, 36, 43, 50,

A: Given,          The sum of the first 37 terms of the arthmetic sequence             29 , 36 , 43 ,…

Q: Find the sum of the first eight terms of the sequence , −     , 1/8   -1/4   1/2

A: The sequence 18,-14,12,... We have to find the sum of the first eight terms.

Q: Identify the 7th term of the sequence: 4, 20, 100, .... * O 65,200 315,200 O 62,500 O 312,500

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Q: What is the sum of the first 50 terms of the arithmetic sequence whose first term is a1=8, with…

A: We will find out the required value.

Q: Find the sum of the first 25 terms of the sequence. 46, 8, 10, S25-

A: This question is related to arithmetic progression .

Q: Find the sum of the first 4 terms of a geometric sequence with a = 270 and r= The sum is 2/3

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Q: Find the sum of the first five terms of geometric sequence. a1 = -5, r = 4

A: We know that, sum of n terms of an geometric series with first term a and common ration r is given…

Q: Find the sum of the first 40 terms of the sequence. {1, 6, 11, 16, …}

A: Given sequence is 1, 6, 11, 16, .......

Q: Find the sum of the first 12 terms in the following sequence 10 3,-6, 12, -24,.

A: Given sequence is,

Q: Find the sum of the first 11 terms of the geometric sequence: 3, -6, 12, -24, . .

A:

Q: Find the sum of the first five terms of geometric sequence. a1 = 6.324, r = 2.598

A: Given, geometric sequence with a1 = 6.324, r = 2.598

Q: Find the sum of the first 15 terms for the sequence: 7,10, 13, 16, 19,

A: We have 7,10,13,16,19,.........15th termFirst term a=7common Difference d=10-7=3

Q: Use the formula for the sum of the first n terms of a geometric sequence to:

A: The given geometric series is: -32, 3, -6, 12,....  The first term of this series is a=-32 and the…

Q: What is the next three terms of the given sequence 25,12,-1,-14,-27,_,_

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Q: Find the sum of the first 109 terms in the sequence with a1=-3 and d=5.

A: Given  First term a1=−3 Common difference d=5 number of terms n=109

Q: Find the sum of the first 15 terms of the geometric sequence: 5, -15, 45, -135, . . . .

A: Given geometric sequence is 5,-15,45,-135,... First term of the sequence, a= 5 Common ratio of the…

Q: Find the sum of the first 18 terms of the geometric sequence: 2, -8, 32, -128, . . . .

A: The given geometric sequence: 2, -8, 32, -128 first term (a) = 2 common ratio r=ara=-82=-4 number of…

Q: Find the first term, a1, and the common difference, d, of the sequence. 13, 10, 7, 4, 1, ...

A: The given sequence is 13, 10, 7, 4, 1,.... So the first term is=a1= 13

Q: Find the 7th term of the geometric sequence 2, -6, 18, ...

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Q: List the first five terms of the sequence. 2 = 4, ant = Sa, - 3 a5 2,

A: See the attachment

Q: Find the sum of the first 17 terms in the following sequence 7 3,6,9,12,.

A: Given sequence is,

Q: Suppose you have the sequence 4, 1, -2, -5,.. . Find the sum of the first 20 even terms.

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Q: Find the sum of the first fifty terms of the sequence: 5, - 2, - 9, -16, .. O - 275 O - 338 O 8,575…

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Q: Find a formula for the nth term of the sequence 1, - 4, 9, – 16, 25, ..

A: We can find the nth term of the sequence. We notice pattern of the sequence.

Q: Find the sum of the first 20 terms of the sequence. 1, 4, 7, 10, ..

A: By using sum formula, we calculate the required sum of the sequence.

Q: What are the first 5 terms of the sequence represented by a=2n-3a n "n-1, where a₁ = 4₂

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Q: Find the 11th term of the sequence 3, -6, 12, -24,. ...

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Q: Find the sum of the first 20 terms of the sequence 5, 10, 15, 20, ...

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Q: Find the sum of the first 12 terms of the geometric sequence: 2, 6, 18, 54, . . .

A: Consider the following geometric sequence: 2, 6, 18, 54,... First term of the sequence: a=2 Common…

Q: Find the sum of the first 11 terms of the geometric sequence: 7, -21, 63, -189, 567, . . . .

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Q: Find the sum of the first 50 terms of the arithmetic sequence below. - 11. -7, -3, 1, ..

A: Sum of n-terms:            Sn= n22a+(n-1)d ; where a is the first term and d is the common…

Q: Find the first four terms of the sequence given by the following. a,= 32+(n-1)-6, n=1,2, 3...

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Q: Find the sum of the first 60 terms of the sequence. {2, 10, 18, 26, …}

A: Given sequence is 2, 10, 18, 26.........

Q: Find the first four terms of a sequence whose nth term is given by n^2 - 1.

A: Topic :- Sequence

Q: 3. -5, 15, -45,... n = 7

A: