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Natalka [10]
3 years ago
5

The perimeter of the rectangle is 28 units.

Mathematics
1 answer:
kakasveta [241]3 years ago
8 0

Answer:

5 units

Step-by-step explanation:

P= 2 (l + w) = 2 x (9 + 5) = 28

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The wavelength of a wave of frequency 100 Hz is 3.3m. Find it's speed​
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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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