Sequences and Series

Classify the following sequence as arithmetic, geometric, or neither:

-9, -6, -3, 0, 3, 6, ...

• Geometric

• Arithmetic

• Neither

Classify the following sequence as arithmetic, geometric, or neither:

1, 1, 2, 3, 5, 8, 13, ...

• Arithmetic

• Geometric

• Neither

Find the next term of the sequence:

2, 2, 4, 6, 10, 16,...

• 28

• 26

• 24

• 22

Find the next term of the sequence:
2, -1,  $\frac{1}{2}$  ,  $-\frac{1}{4}$  ,... 

•  $\frac{1}{16}$  

•  $-\frac{1}{16}$  

•  $\frac{1}{8}$  

•  $-\frac{1}{8}$  

Find the 15th term of the series:

2+7+12+17+22+...

• 68

• 72

• 76

• 82

Find the 10th term of the series:

1+2+4+8+16

• 64

• 256

• 512

• 1024

Find the sum of the series:

1+2+3+4+...+50

• 50

• 1275

• 2550

• 5100

Find the sum of the series $\sum_{n=1}^82n$  

• 63

• 72

• 81

• 144

Find the sum of the series $\sum_{n=1}^42\left(2\right)^n$  

• 58

• 60

• 62

• 124

Find the sum of the series $\sum_{n=1}^{20}\left(3n+2\right)$  

• 33.5

• 67

• 670

• 1340