What is the sum of the arithmetic sequence 8,14,20 ..., if there are 22 terms? answers to choose from.

a) 1,558

b) 1,560

c) 1,562

d) 1,564

Question

Elyse Glover

Mathematics

17 January, 04:45

What is the sum of the arithmetic sequence 8,14,20 ..., if there are 22 terms? answers to choose from.

a) 1,558

b) 1,560

c) 1,562

d) 1,564

+3

Answers (1)

Know the Answer?

Xavier Oconnell · Answer 1

The common difference in this sequence is 6

The sum of n terms of an arithmetic sequence is given by:

S = n/2 [2a₁ + (n - 1) d]

S = 22/2 [2 (8) + (22 - 1) (6) ]

S = 1562

The answer is C

What is the sum of the arithmetic sequence 8,14,20 ..., if there are 22 terms? answers to choose from.a) 1,558b) 1,560c) 1,562d) 1,564

What is the sum of the arithmetic sequence 8,14,20 ..., if there are 22 terms? answers to choose from.

a) 1,558

b) 1,560

c) 1,562

d) 1,564