Sequences and Series

What is the nth term of the arithmetic sequence: 2, 5, 8, 11, ...?

• n^2 + 1

• 3n - 1

• 4n - 1

• 2n + 1

Find the sum of the first 10 terms of the geometric sequence: 3, 6, 12, 24, ...

• 3100

• 3050

• 3075

• 3000

Determine if the sequence 1, 4, 9, 16, ... is arithmetic, geometric, or neither.

• cubic

• exponential

• arithmetic

• fibonacci

Calculate the 7th term of the sequence: 1, 4, 9, 16, ...

• 36

• 64

• 25

• 49

What is the common ratio of the geometric sequence: 2, 6, 18, 54, ...?

• 4

• 3

• 24

• 12

Find the sum of the first 5 terms of the arithmetic sequence: 3, 7, 11, 15, ...

• 45

• 60

• 40

• 55

Write the nth term formula for the arithmetic sequence: 10, 15, 20, 25, ...

• a_n = 6n + 5

• a_n = 4n + 5

• a_n = 5n + 3

• a_n = 5n + 5

If the 4th term of a geometric sequence is 48 and the common ratio is 2, what is the first term?

• 6

• 12

• 24

• 8

Determine if the sequence 2, 4, 8, 16, ... is arithmetic, geometric, or neither.

• prime

• arithmetic

• odd

• geometric

Calculate the 10th term of the sequence: 1, 3, 9, 27, ...

• 243

• 81

• 729

• 59049