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snow_tiger [21]
2 years ago
9

Does anyone know this?

Mathematics
2 answers:
Aneli [31]2 years ago
8 0

Answer:

I am pretty sure its 45 degrees

Step-by-step explanation:

Studentka2010 [4]2 years ago
8 0

Answer:

a = 4.57

Step-by-step explanation:

XM is tangent and XZ is secants: XM² = XY * XZ

9² = 7 * (7+a)

81 = 49 + 7a

7a = 81-49 = 32

a = 32/7 = 4.57

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Answer:

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Step-by-step explanation:

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Is the relationship shown by the data linear? If so, model the data with an equation.
zhenek [66]

Answer:

Therefore the equation of the line through ( -7 , 5 ) and ( -5 , 9) is

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Step-by-step explanation:

Given:

Let,

point A( x₁ , y₁) ≡ ( -7, 5 )  

point B( x₂ , y₂) ≡ (-5, 9)  

To Find:

Equation of Line AB =?

Solution:

Equation of a line passing through Two points A( x₁ , y₁) and B( x₂ , y₂)is given by the formula

(y - y_{1} )=(\frac{y_{2}-y_{1} }{x_{2}-x_{1} })\times(x-x_{1}) \\

Substituting the given values in a above equation we get

(y-(5))=(\frac{9-(5)}{-5--7})\times (x--7)\\ \\(y-5)=\frac{4}{2}(x+7)\\\\y-5=2(x+7)...............\textrm{which is the required equation of the line AB}

Therefore the equation of the line through ( -7 , 5 ) and ( -5 , 9 ) is

Linear Relationship i.e y-5=2(x+7)

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