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IrinaK [193]
3 years ago
8

What's numbers 21 and 22 thx!

Mathematics
1 answer:
Naya [18.7K]3 years ago
5 0
21: N = 25.

22: 

1: 19
2: 30
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kozerog [31]

Answer:

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Step-by-step explanation:

If \cot \theta=\dfrac{4}{3}, then we can consider right triangle with adjacent leg 4 un. and opposite leg 3 un.. By the Pythagorean theorem,

\text{hypotenuse}^2=\text{adjacent leg}^2+\text{opposite leg}^2,\\ \\\text{hypotenuse}^2=4^2+3^2,\\ \\\text{hypotenuse}^2=16+9,\\ \\\text{hypotenuse}^2=25,\\ \\\text{hypotenuse}=5\ un.

So,

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6 0
3 years ago
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