Respuesta :
Answer:
.84 x 10 ^4
Step-by-step explanation:
hope this helps!!!
i just got done with these, please mark brainliest
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