Question

interpole 7 meios aritimeticos entre 4 e 8

Answer 1

Resposta:

4, _, _, _, _, _, _, _, 8

an= a1 + (n - 1). r

8 = 4 + (9-1). r

8 = 4 + 8 . r

8 = 4 + 8r

8 - 4 = 8r

4 = 8r

4/8 = r

r = 0.5

R= {4 ; 4,5 ; 5,0 ; 5,5 ; 6,0 ; 6,5 ; 7,0 ; 7,5 e 8,0}