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Norma-Jean [14]
3 years ago
12

I know the answer is 12, but why?

Mathematics
1 answer:
Gala2k [10]3 years ago
7 0
(fog)(2)=f(g(2))

so first evaluate g(2)
we know that g(2)=7
then now we evaluate f(7)
answer is 12

see
f(g(2))=f(7)=12
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