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Lubov Fominskaja [6]
3 years ago
9

Please help 25 points the problem is below

Mathematics
1 answer:
andrew11 [14]3 years ago
3 0

The formula of an area of a rectangle:

A=wl

We have l = 2w + 40

Substitute:

A=w(2w+40)=2w^2+40w

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≈ 33°

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