Month 6.4

Determine the sum of the series.

• 144

• 180

• 176

• 68

Determine the sum of the series.

• 8.25

• 9

• 5

• 2.25

Determine the sum of the series.

• 194

• 388

• 197.5

• 216

Determine the sum of the series.

• 45

• 49

• 90

• 47

Determine the sum of the series.

• -1

• 244

• 270

• 255

Determine the sum of the series.

• -629923

• -629145

• -641637

• -641222

This summation is the same as which series?

• 1 + 2 + 3 + 4 + 5 + 6
• (1 - 2) + (2 - 2) + (3 - 2) + (4 - 2) + (5 - 2) + (6 - 2)
• (1 - 2) + (6 - 2)
• (1 - 2) + (2 - 2) + (3 - 2) + (4 - 2)

Which of the following is an example of an arithmetic sequence?

• 1, 1, 2, 3, 5...

• 15, 20, 26, 33...

• 84, 73, 62, 51...

• 1, 10, 100, 1000...

What is the 12^th term of the sequence 9, 12, 15...?

• 45

• 41

• 40

• 42

Identify the common difference.
97, 86, 75, 64, ...

• 8
• 11
• -11
• -8