boyettalexandra
20.12.2019 •
Mathematics
2mn +4n2 and 5m2 - 7mn
5 m2 + 5 mn - 4 12
5 m2 - 14 mn - 4 12
9 12 + 9 mn-4 17
5 m2-5 mn + 4 12
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Ответ:
122 sq. in.
Step-by-step explanation:
P = 2 (l + w)
P = 2 (34.5 + 26.5)
P = 2 x 61
P = 122 sq. in. = 0.847 sq ft = 0.0941 sq. yards