If the sin(50) = 10/15 what is cosine(40)? can - id501015401239817, afosburgh20

Ответ:

ella3714

14.03.2022

Recall that

$\cos(90-x)^\circ=\sin x^\circ$

which tells you that $\cos40^\circ=\cos(90-50)^\circ=\sin50^\circ$ , so in fact

$\cos40^\circ=\sin50^\circ=\dfrac{10}{15}$

Attached is an image demonstrating why the identity is true.

If the sin(50) = 10/15 what is cosine(40)? can someone explain this to me

If the sin(50) = 10/15 what is cosine(40)? can someone explain this to me

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Ответ:

officialrogerfp3gf2s

14.09.2022

Mathematics

Hello!

To find the x-intercept given the equation of a line, we substitute y for 0 and solve for x.

0=4x²-9

We add 9 to both sides.

9=4x²

We find the square root of both sides.

3=4x

We divide both sides by 4.

x=3/4

Therefore, our x-intercept is 3/4.

I hope this helps!

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If the sin(50) = 10/15 what is cosine(40)? can someone explain this to me

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