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Llana [10]
3 years ago
9

Please help x

Mathematics
1 answer:
seraphim [82]3 years ago
5 0
7) (-30x^2 -20)/3x^2-3
8) squareroot(20b+3)
9) (S-d)/2(symbol for pi)×d

(i could not fit 7,8 and 9 into the picture)

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