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donovanarodwa

Answer:so it starts a 4 so then 4x2 is 8 that's already one hour

8x2 is 16 thats 2 hours 16x2=32 thats 3 hours  32x2 is 64 thats four hours then 64x2 is 128 thats 5 hours then 128x2 is 256 thats 6 256x2 is 512 thats 7 hours     512x2 is 1024

Step-by-step explanation:for a shorter example do 2 to the power of 8 then muiltpy that by 4

ashish4112119

Answer:

1024

Step-by-step explanation:

(initial num of bacteria) × 2^(num of hours)

Number of bacteria = 4x 2^(8)

1024 bacteria exists after 8 hours.

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