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Alja [10]
2 years ago
15

(9mn-19^4n) - (8m^2+12m^4n+9mn

Mathematics
1 answer:
Alja [10]2 years ago
6 0

Answer:

-19n^4 - 8m^2 - 12m^4n

Step-by-step explanation:

8m^2 + 12m^4n + 9mn

-

19n^4 9mn

------------------------------------------------------------------------

-19n^4 - 8m^2 - 12m^4n

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Answer:

*  The mean (a measure of central tendency) weight value is the average of the weights of all pennies in the study.

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Step-by-step explanation:

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