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inysia [295]
3 years ago
11

Solve for x, need help asap!

Mathematics
1 answer:
Alexxx [7]3 years ago
4 0

Let's solve for x using trigonometric relation ( Cos )

we know,

\cos(30 \degree)  =  \dfrac{base}{hypotenuse}  =   \dfrac{ \sqrt{3} }{2}

now

\dfrac{x}{8}  =  \dfrac{ \sqrt{3} }{2}

x =  8 \times \dfrac{ \sqrt{3} }{2}

x = 4 \sqrt{3}

hence, the value of x is 4 \sqrt{3}

You might be interested in
Clare made an error when solving -4x + 3 < 23
Fittoniya [83]

Answer:

Clare didn't change the inequality symbol in the last step to >

Step-by-step explanation:

Given inequality is:

-4x+3

Clare's error was in the last step where she multiplied the inequality by -4 to remove the minus sign with x. When an in equality is multiplied/Divided by a negative number then the sign of inequality is reversed. < is changed to > and > is changed to less than.

The answer must have been x > -5

The correct way to solve is:

-4x+3

Hence,

Clare didn't change the inequality symbol in the last step to >

6 0
3 years ago
Can anyone help me I really need help on this what I will give a brain for this
Hatshy [7]

well since the formula is pi times radius squared that means it's 4 pi times 4 pi since the radius is squared so it's 16 pi

7 0
3 years ago
Sin(cos^-1 x)<br><br> how to solve?
tatiyna

Answer:

sin(cos^{-1}x)=\sqrt{1-x^2}

Step-by-step explanation:

let us assume

cos^{-1} x=\theta\\x=cos\theta\\

now

sin(cos^{-1}x) can be written as sin\theta

we know  sin^2\theta+cos^2\theta=1

so sin^2\theta=1-cos^2\theta

sin\theta=\sqrt{1-cos^2\theta}

now from above equation we can say that

sin\theta=\sqrt{1-x^2}

sin(cos^{-1}x)=\sqrt{1-x^2}

7 0
3 years ago
Line m passes through the points (-4, 3) and (-4, 7). What is the slope of the line that is parallel to line m?
Lina20 [59]
The line has no slope. Slope doesn't exist.

7 0
3 years ago
Write each of the following expressions in the form of Ax^m y^n, where A is a real number and m and n are integers. (x^2y)÷(2yx^
guapka [62]

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Hello!! I'm always here to help!!

•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°

2x° + 2x° + 76° = 180° ( being supplementary angle )

4x° = 180° - 76°

4x° = 104°

x = 104/4

x = 26°

•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°•·°

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Have a great day!!

⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜⁜

<em>“Everything is within your power,</em>

<em>and your power is within you.”</em>

<em>― Janice Trachtman, Catching What Life Throws at You: Inspiring True Stories of Healing</em>

°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•●°·•

5 0
2 years ago
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