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Ghella [55]
3 years ago
9

Find the value of the x.

Mathematics
2 answers:
Lina20 [59]3 years ago
7 0

Step-by-step explanation:

By angle sum property

7x-41+5x-12+2x+9 = 180

14x -44 =180

14x =224

x= 224/14

x= 16°

Nikolay [14]3 years ago
6 0

Answer:

thanks for this question as I also wanted it

Step-by-step explanation:

may I know in which grade are you

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Rationalize the denominator and simplify. √6/√5-√3​
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Step-by-step explanation:


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The point (-3/5,y)in the third quadrant corresponds to angle θ on the unit circle.
anastassius [24]
The given point (-3/5 , y) lies in the third quadrant.
It is also given that the point lies on a unit circle.

For a point (x,y) lying on a unit circle a and y are defined as:

x = cos θ
y = sin θ

So, we can say for the point (-3/5 , y) the value -3/5 is equal to cos θ

sec θ is the reciprocal of cos θ.

So, sec θ = -5/3

cot\theta= \frac{cos\theta}{sin\theta}

Using Pythagorean identity we can first find sin θ.

sin \theta = - \sqrt{1- cos^{2}\theta }  \\  \\ 
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Since the point lies in 3rd quadrant, both sin and cos will be negative.

So, now we can write:

cot\theta= \frac{ \frac{-3}{5} }{ \frac{-4}{5} } \\  \\ 
cot\theta= \frac{3}{4}

Answers:
sec θ = -5/3
cot θ = 3/4
8 0
3 years ago
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Answer:

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Step-by-step explanation:


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3 years ago
If the slope of line L is -2/5, what is the slope of line m so that line l and line m are perpendicular?
ki77a [65]
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3 0
4 years ago
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