

1. 
Find the 29th term in the arithmetic sequence 9, 4, 1, 6, ... . 


A. 
136 
B. 
126 


C. 
131 
D. 
121 


Hint 


2. 
Write an arithmetic sequence that has three arithmetic means between 3.5 and 2.7. 


A. 
3.5, 3.4, 3.1, 2.8, 2.7 


B. 
3.5, 3.35, 3.15, 2.95, 2.7 


C. 
3.5, 3.3, 3.1, 2.9, 2.7 


D. 
3.5, 3.25, 3.05, 2.85, 2.7 


Hint 


3. 
Find the sum of the first 42 terms in the arithmetic series 5 + 10 + 15 + ··· + 210. 


A. 
4510 
B. 
4515 


C. 
4525 
D. 
4505 


Hint 


4. 
Find the sum of the first 25 terms in the series 15  8  1  ··· . 


A. 
1718 
B. 
1711 


C. 
1725 
D. 
1732 


Hint 


5. 
If a_{1}, a_{2}, …, a_{n} is an arithmetic sequence, then a_{1} + a_{2} + … + a_{n} is _____________. 


A. 
an arithmetic series 


B. 
a recursive formula 


C. 
a different arithmetic sequence 


D. 
the arithmetic mean 


Hint 

