Arithmetic Sequence Summation

Calculate the final sum/total of the series.

• 6

• 21

• 9

• 2

The summation is the same as which series?

• (4+10) + (4+20) + (4+30) + (4+40) + (4+50) + (4+60) + (4+70) + (4+80) + (4+90) + (4+100) + (4+110)

• 1+2+3+4+5+6+7+8+9+10+11

• 4 + 110

• 4 + 10

• 196
• 392
• 49
• 254

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)

• 149
• 11,200
• 5,600
• 140

Find the sum of the arithmetic series using a formula.

• 516, 240

• 516,242

• 116, 242

• 506, 242

Evaluate the arithmetic series described:
2 + (-2) + (-6) + (-10)..., S₁₀

• -160

• -328

• -320

• -336

Is this summation finite or infinite?

• Finite, because there are only 6 terms to add up.

• Infinite, because there are an infinite number of terms to add up.

Calculate the sum.

• 66

• 14

• 704

• 114

Find the 11th partial sum of the sequence where the first term is 10 and the common difference is 7.

• 495

• 80

• 395

• 90