Question

preciso da resposta pra ontem!!!!!​

Answer 1

Resposta:

item c) 1/9

Explicação passo-a-passo:

[ (2/3 : 5/9 -3/5 - 1/15) × 1/2] ² : (4/5)²=

[ (2/3 × 9/5 - 3/5 - 1/15) × 1/2]² : 16/25=

[ ( 18/15 - 3/5 -1/15) × 1/2]² : 16/25=

[ (17/15 - 3/5) × 1/2]² : 16/25=

[ 17 - 9 1/2]² : 16/25=

_____ ×

15

[ 8/15 × 1/2]² : 16/25=

[ 8/30]² : 16/25=

[ 4/15]² : 16/25=

16/225 : 16/25=

16/225 × 25/16=

25/225=

25 ÷ 25

_______=

225÷25

1/9