3 years ago

Please help!!!!

Mathematics

1 answer:

ioda3 years ago

7 0

Answer:

129

Step-by-step explanation:

Each day, Monica measures the amount of change in the number of bacteria and this number from each day gives a geometric series

3, -6, 12, -24, ...... having first term 3 and the common ratio -2.

Then the sum of the amount of change in the bacteria after the seventh day will be ( 3 - 6 + 12 - 24 + 48 - 96 + 192) = 129 (Answer)

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