2 years ago

I need help to do this

Mathematics

1 answer:

kari74 [83]2 years ago

4 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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Andru [333]

Answer:

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Step-by-step explanation:

By sine rule:

$\frac{x}{ \sin 81 \degree} = \frac{7}{ \sin 40 \degree} \\ \\ x = \frac{7 \sin 81 \degree}{ \sin 40 \degree} \\ \\ x = \frac{7 \times0.9876883406 }{0.6427876097} \\ \\ x = \frac{6.91381838}{0.6427876097} \\ \\ x = 10.755992 \\ \\ x \approx 10.8$

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3 years ago

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Step-by-step explanation:

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