Danielles hoop earring has a diameter of 4 centimeters.

Ответ:

Juliianatafur22

27.01.2022

Mathematics

Step-by-step explanation:

Step 1: Find the radius

Radius = Diameter / 2

Radius = (4)/2

Radius = 2

The radius is 2

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Ответ:

camilacarrielh15

08.06.2021

Mathematics

In polar coordinates, we have

$x=r\cos\theta\implies\cos\theta=\dfrac xr$
$y=r\sin\theta\implies\sin\theta=\dfrac yr$

From this we can write

$\tan\theta=\dfrac{\sin\theta}{\cos\theta}=\dfrac{\frac yr}{\frac xr}=\dfrac yx$

If $\theta=\dfrac{4\pi}3$ , then $\tan\theta=\sqrt$ , so we get

$\dfrac yx=\sqrt3\implies y=\sqrt3\,x$

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Danielles hoop earring has a diameter of 4 centimeters. What is the radius?

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