Respuesta :

Donna1905

Answer: 4*10^-4

Step-by-step explanation:

0.0004=4*10^-4

shu49

4 × 10^-4

Step-by-step explanation:

To find the answer you move the decimal from behind the 4 which lookd like this 4. beackwards 4 times which gives you 0.0004

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