Use Sigma notation to represent the series, algebra homework help

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Use Sigma notation to represent the series, algebra homework help

1) 

Use Sigma notation to represent the series below.

2 + 5 + 8 + 11 + 14 + 17

A. 

B.

C.

D.


2) Find the sum of the arithmetic series.

a) 25

b) 126

c) 133

d) 119

3) Find a1 if d = 4, a20 = 82, and S20 = 880.

a) 2

b) 4

c) 6

d) 60

4) Find a1 if d = 2.5, a15 = 33.5, and S15 = 240.

a) 2.5

b) -1.5

c) -4

d) -2.5

5) Find the sum of the arithmetic series shown below.

a) 11187

b) 11300

c) 11074

d) 11211