Respuesta :

osikbro

Answer:

x is about 10.39, y is about 20.78

Step-by-step explanation:

15)

[tex]\tan 30=\dfrac{x}{18}\\x=18 \cdot \tan 30\approx 10.39\\\cos 30 =\dfrac{18}{y}\\y=\dfrac{18}{\cos 30}\approx 20.78[/tex]

fanstefanie

Answer:

x=6√3

y=12√3

Step-by-step explanation:

This is a 30 60 90 triangle.

The side opposite from the angle 60 is x√3, which makes 18=x√3, which eventually solves to x=6√3

The side opposite from the 90 degree angle is 2x, so multiply 6√3 by 2, which is 12√3, making y equal 12√3

I hope this helps :)

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