Question 53517:  1) 	Use the arithmetic sequence of numbers 1, 3, 5, 7, 9,…to find the following: 
a) 	What is d, the difference between any 2 terms?  
Answer:  
Show work in this space.	
 
 
 
b) 	Using the formula for the nth term of an arithmetic sequence, what is 101st term? Answer:	 
Show work in this space.	
 
 
 
c) 	Using the formula for the sum of an arithmetic series, what is the sum of the first 20 terms?  
Answer:	 
Show work in this space	
 
 
 
 
d) 	Using the formula for the sum of an arithmetic series, what is the sum of the first 30 terms? 
Answer:	 
Show work in this space	
 
 
 
 
e) 	What observation can you make about these sums of this series (HINT: It would be beneficial to find a few more sums like the sum of the first 2, then the first 3, etc.)?  Express your observations as a general formula in "n." 
Answer:	
 
 
 
I think I got it but i'm not sure. 
 
 Answer by venugopalramana(3286)      (Show Source): 
You can  put this solution on YOUR website! see the following example and try.if still in difficulty please come back 
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Sequences-and-series/29783: 1)Use the arithmetic 
sequence of numbers 2, 4, 6, 8, 10� to find the 
following: 
a)What is d, the difference between any 2 terms? 
Answer: 
Show work in this space.
 
 
b)Using the formula for the nth term of an arithmetic 
sequence, what is 101st term? Answer: 
Show work in this space.
 
 
c)Using the formula for the sum of an arithmetic 
series, what is the sum of the first 20 terms? 
Answer: 
Show work in this space.
 
 
 
d)Using the formula for the sum of an arithmetic 
series, what is the sum of the first 30 terms? 
Answer: 
Show work in this space.
 
 
 
e)What observation can you make about these sums of 
this series (HINT: It would be beneficial to find a 
few more sums like the sum of the first 2, then the 
first 3, etc.)? 
Answer: 
1 solutions 
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