Respuesta :

Answer:

.84 x 10 ^4

Step-by-step explanation:

hope this helps!!!

i just got done with these, please mark brainliest

AlbieIXV

Answer:

8.4 x 10'5

Step-by-step explanation:

move the decimal point to make a number between 1 and 9.9. so 8.4. count how many times the decimal point moves. that's the power of 10

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