Robinlynn228
10.11.2020 •
Mathematics
Simplify the expression.
(-1) • (-1)
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Ответ:
Ответ:
Explanation a negative • a negative equal a positive
Ответ:
City A:
City B:
City B has a greater change in temperature.
Step-by-step explanation:
City A:
Let the initial temperature of city A at 8 AM =
Temperature change from 8 AM to 9 AM: 4
rise
Temperature at 9 AM =
Temperature change from 9 AM to 10 AM: 7
drop
Temperature at 9 AM =
Total change in temperature =
drop
City B:
Let the initial temperature of city B at 8 AM =
Temperature change from 8 AM to 9 AM: 6
drop
Temperature at 9 AM =
Temperature change from 9 AM to 10 AM: 2
drop
Temperature at 9 AM =
Total change in temperature =
drop
Therefore, the answer is:
City B has a greater change in temperature.