Question

Ajudar pfv
Interpole sete meios artimeticos entre -20 e 12

Answer 1

Resposta:

$\mathsf{-20,\:-16,\:-12,\:-8,\:-4,\:0,\:4,\:8,\:12}$

Explicação passo a passo:

$\mathsf{a_n = a_1 + (n - 1)r}$

$\mathsf{12 = -20 + (9 - 1)r}$

$\mathsf{12 = -20 + 8r}$

$\mathsf{8r = 32}$

$\boxed{\boxed{\mathsf{r = 4}}}$