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Danilo Moret asked Dec 3, 2022

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2 votes

Find x.
30
20
Need help with this question asap

Mathematics
high-school

Danilo Moret asked Dec 3, 2022

by Danilo Moret

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2 Answers

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Cos=adjacent/hypotenuse
Cos30=x/20
x=cos30 *20

Sorry I don’t have a calculator right now

Khaled Ayed answered Dec 6, 2022

by Khaled Ayed

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5 votes

Answer:

x = 10

Explanation:

Using the cosine ratio in the right triangle and the exact value

cos30° =
, then

cos30° =
=
=
( cross- multiply )

2x = 20
( divide both sides by 2 )

x = 10

NuSphere answered Dec 9, 2022

by NuSphere

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