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Kryger [21]
3 years ago
11

PLZ HELP! QUESTIONS ARE BELOW! :D

Mathematics
1 answer:
harkovskaia [24]3 years ago
8 0

Answer:

1) 243 in.²

Step-by-step explanation:

1)

A = 18 in. * 18 in. - 9 in. * 9 in. = 243 in.²

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Let the polynomials A = 7x² + 3xy e B = -3xy.
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Answer:

The answer is A.

Step-by-step explanation:

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3 years ago
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3 years ago
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mario62 [17]

Answer:

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