Question

Find the 55th term of the arithmetic sequence 2, -18, -38,

Answer 1

Answer:

$- 1078$

Step-by-step explanation:

$2 \: \: \: \: \: \: - 18 \: \: \: \: \: \: \: \: 38 \\ \\ a = 2 \\ d = - 18 - 2 = - 20 \\ \\ 55th \: term = a + (54)d \\ = 2 + 54( - 20) \\ = 2 - 1080 \\ \\ = - 1078$