ramosramos142
09.04.2021 •
Mathematics
Find the indicated cardinal number
Find n(AxB) given that n(A)=31 and n(B)=9
A. 40
B.279
C.22
D.49
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Ответ:
You find it by using this formula A=a^2
Step-by-step explanation: An example is A=a^2=52=25