Question

Oi, me ajudem por favor...

Answer 1

Resposta:

a) 4/x=x/9

x²=4*9

x²=36

x=√36

x=6

b) x/6=6/12

6*6=12x

36=12x

x=36/12

x=3

c) 4/x=x/16

x²=4*16

x²=64

x=√64

x=8

d) 3/6=6/x

6*6=3x

36=3x

x=36/3

x=12

espero ter ajudado :)