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denis23 [38]
3 years ago
9

Plzzzz help me ??!?!?!??

Mathematics
2 answers:
True [87]3 years ago
5 0

Pythagorean Theorem is for right triangles

 right triangles have a 90 degree angle in them

 D is a right triangle

const2013 [10]3 years ago
3 0
D is the correct answer
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The given equation is: y+2x=5

To find the line perpendicular to it, we interchange coefficients and switch the signs of one coefficient.

The equation to a line perpendicular to it is:

$ 2y-x=c$

where, $c$ is some constant we have determine using the condition given.

It passes through $(2,-1)$

Put the point in our equation:

$2(-1)-(2)=c$

$c=-2-2$

$c=-4$

The final equation is:

$\boxed{ 2y-x=-4}$

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y-intercept = -3

y = 5/3x - 3

Step-by-step explanation:

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7-2 = 5

6-3= 3

Now you have your slope which is 5/3

Then take the slope and input it into point slope form to get your y-intercept.

y-y₁=m(x-x₁)

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add two to both sides to get Y by itself

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Then check your answer by inputing two different coordinates for X and Y

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<em>x = 8</em>

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<em>1/2 = x/16</em>

<em>2x = 16</em>

<em>x = 16 : 2</em>

<em>x = 8</em>

6 0
3 years ago
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