26 Answered Questions for the topic Arithmetic Series

08/31/19

#### Pre Calculus 11 - Arithmetic Series

What is the first term of a 10-term arithmetic series with t2=10 and S=120? Leave your answer in exact form.Sadly, I don't even know where to start with this question. I understand that there is...
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08/04/19

#### This question is related to Sigma notation. Please help me go through this.

Use properties of summation and constant/arithmetic/geometric series to find n+1∑r=3 (n+2+3r+1/5^r) in terms of n.

08/30/18

#### Arithmetic series/sequence simple problem

I have to use term or sum arithmetic series/sequence formulas to solve the 3 parts of this problem, but I don't understand how to convert the numbers provided into a usable equation.
An...
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01/11/18

#### The sum of the first 12 terms of an arithmetic series is 186, and the 20th term is 83. What is the sum of the first 40 terms?

arithmetic series question

01/04/18

#### how to do problem like the following super fast? 99+98+97+96...+2+1/99!

Steps to solve the question please.
99+98+97...+2+1/99 factorial

04/02/17

#### what is the value of an aritmmetic series whose first term is -100, whose common difference is 8, and which has 30 terms?

how is this figured out?

04/02/17

#### the following series is arithmetic: 5+8+11+...+116

I have to show how I arrived at the following:
a) determine the number of terms in this series.
b) determine the sum of this series.

02/16/17

#### Arithmetic series

Series of odd number is 1+3+5+7+...
a)Prove that the sum of the first n odd integers is n squared
b) Check answer to a) by finding S1. S2. S3 and S4

08/28/16

#### Put 5 terms between 1 and 1.3 So that together with the given terms they can form an AP

Put 5 terms between 1 and 1.3 So that together with the given terms they can form an AP

07/10/16

#### arithmetic sequence/series?

Use the following information to construct the arithmetic series, indicate the first term, common difference, and value of the iPhone after 3 years with an initial cost of $200 and a depreciation...
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05/17/16

#### How would you find the tenth term?

the 7th term of an arithmetic series is 21 and the 21st term is 301. What is the tenth term?

02/14/16

#### AP 1st term=x+1, 2nd term=2x-1, 4th term=2x+5, find x, a, d

AP 1st term=x+1, 2nd term=2x-1, 4th term=2x+5, find x, a, d
Please help me how to find even one of these values. I don't even have the sum of given terms, so I really have no value to progress.

01/28/16

#### the fifth term plus the eight term is 58.The second term plus the fourth term is 30. What is the first term and what is the common difference

T5+T8= 58
T2+T4=30

01/13/16

#### Arithmetic Series question

'A merchant places $1 in a jackpot on August 1, then draws the name of a regular customer. If the customer is present, he or she wins the $1 in the jackpot. If the customer is not present, the...
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01/10/16

#### Arithmetic Series

The first term of an arithmetic series is 12 and the 5th term is -90. The series has 10 terms in total. What is the sum of this series?

11/22/15

#### How to find the closed form definition of a series?

How does one determine if the following series is arithmetic or geometric?
n f(n) Σ0 1 11 5 62 14 20 3 30 504 55 105
If it is arithmetic, what is the common...
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07/19/15

#### sequence/series question. PLEASE HELP!!!!

What is 32nd term if given the following
X Y
1 1
2 3
3 6
4 10
Please help!!!!. I can see...
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06/12/15

#### Series and common ratios

If the first term of a series is 2 and the 6th term is 10:
a) what is the comoon difference
b) what is the common ratio
thank you.

03/18/15

#### Provide an example of an arithmetic series which totals zero. Using complete sentences, explain how you created the example.

Provide an example of an arithmetic series which totals zero. Using complete sentences, explain how you created the example.

03/06/15

#### Sum of first 4 terms of arithmetic progression is 28 and sum of first eight terms is 88. Find sum of first 10 terms.

Sum of first 4 terms of arithmetic progression is 28 and sum of first eight terms is 88. Find sum of first 10 terms.

03/05/15

#### 5+8+11+14+...=670

Find how many terms of this arithmetic series are needed to make the given sum

10/22/14

#### ) How many terms of the following series are needed to make the given sum

a) 5+8+11+14+...=670
b) 3+8+13+18+...=1575
c) 64+62+60+...=0

10/22/14

#### find the sums of the following series:

a) 5+7+9+....+75
b) (x+1)+(2x+1)+(3x+1)+....+(21x+1)

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