Summation Arithmetic

find the sum of the series

10+12+14+16....... n=11

• 200

• 202

• 220

• 210

evaluate the related series of the sequence

6, 11, 16, 21, 26, 31, 36

• 147

• 471

• 741

• 47

find the sum of the sequence if a₁=2 a_n=122 n=13

• 806

• 608

• 86

• 68

149

11,200

5,600

140

• 149

• 11,200

• 5,600

• 140

Find the sum of the arithmetic series using a formula.

• 516, 240

• 516,242

• 116, 242

• 506, 242

2450 4800 2400 9700

• 2450

• 4800

• 2400

• 9700

Find the sum of the series

• -220

• -230

• -225

• -227

determine the number of terms n if a₁=19 a_n=96 S_n=690

• 13

• 9

• 12

• 21

Determine the number of terms n in the series

a₁=-3 d=2 S_n=21

• 7

• 8

• 6

• 4

Evaluate to get (a)   .

• 290

• 278

• 250

• 295