Question

Find the sum of the first 16 terms in an arithmetic series where a1 = 2, and the common difference is d=2. Question 4 options: A) 272 B) 240 C) 360 D) 306

Answer 1

272

Explanation:

Answer 2

A) 272

Explanation:

`S_(n)=(n)/(2)*[2a + (n-1)d]\\\\s_(16)=(16)/(2)[2*2+15*2]\\\\ =8*[4+30]\\\\=8*34\\=272`