Sequences and Series

State if it is arithmetic, geometric or neither. 
-30,-14,-6,-2, 0, ...

• Arithmetic
• Geometric
• Neither 
• I dunno???

What is the twelfth term in the sequence 3, -6, 12, . . . ?

• -2,048
• 6,144
• -6,144
• -531,441

What is the sum of the first ten terms of the sequence 4, -12, 36, -144 . . . ?

• 59,050
• -59,048
• -78,732
• 118,096

The next two terms of the sequence 8,4,2,1, 1/2 are

• 1/3 and 1/4
• 1/4 and 1/8
• 1/8 and 1/6
• 1/5 and 1/7

What is the explicit rule for the sequence:
11, 22, 44, 88...

• a_n = 2(11)^n-1
• a_n = 11x2
• a_n = 11(2)^n-1

Identify the common ratio.
3, 9,27,81, ...

• 6
• 5
• 4
• 3

Evaluate the series.

• 36
• 85
• 35
• 86

What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47 + ...?

• 1,600
• 18,235
• 18,475
• 19,125

• converges to ⅕
• converges to 0
• diverges
• converges to 3/2

State if it is arithmetic, geometric or neither. 
-30,-14,-6,-2, 0, ...

• Arithmetic
• Geometric
• Neither 
• I dunno???