Algebra 2 sequences and series arithmetic geometric

Write the first 6 terms of the sequence:

a_n = -2n - 5

• -9, -11, -13, -15, -17, -19

• -5, -7, -9, -11, -13, -15

• -7, -9, -11, -13, -15, -17

• -7, -12, -17, -22, -27, -32

Describe the sequence, find the 5th term, and write the rule

-8, -6, -4, -2...

• geometric, a₅ = 2, a_n = 2n - 10

• geometric, a₅ = 0, a_n = -10n + 2

• arithmetic, a₅ = 2, a_n = -10n + 2

• arithmetic, a₅ = 0, a_n = 2n - 10

Write the rule for the nth term of the sequence.

-7, -4, -1, 2...

• a_n = -10n + 3

• a_n = -3n - 10

• a_n = -10n - 3

• a_n = 3n - 10

Find the sum of the first 25 terms of the sequence below:

a_n = 5n + 1

• 126

• 1650

• 3300

• 2650

Find the 8th term of the sequence:

a_n = 2(5)^n-1

• 156250

• 80

• 16

• 10000000

Describe the sequence, find the 5th term, and write the rule.

1, 5, 25, 125...

• geometric, a₅ = 625, a_n = 5^n-1

• arithmetic, a₅ = 3125, a_n = 5^n-1

• geometric, a₅ = 3125, a_n = 5ⁿ

• arithmetic, a₅ = 625, a_n = 5ⁿ

Find the sum of the first 6 terms of the sequence:

a = 100 (1/2)^n-1

• 100000

• 1575/8

• 300

• 250

What is the value of r the common ratio of this series 1+5+25+125,,?

• 1

• 4

• 5

• 156

Is the following geometric 1, 2, 4, 8,16,,,?

• Yes

• No

Evaluate the infinite series described: 

• No Sum
• 0
• -1/9
• -4/25