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3 years ago

Please help, need answer ASAP! Will give brainliest to correct answer!

Mathematics

1 answer:

Ilya [14]3 years ago

6 0

Answer:

Second option is the right choice.

Step-by-step explanation:

Divide the second equation by -5 and you'll get the equation same as first equation.

$\frac{5x}{-5}-\frac{20y}{-5}=\frac{-5}{-5}\:\:\:\rightarrow \:\:\:-x+4y=1$

So, it has infinite many solutions.

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Setler [38]

The length of side PQ of the polygon is 7 units

Step-by-step explanation:

Given points are:

P(5, 4) and Q(−2, 4)

In order to find the length of PQ, the distance formula for coordinate geometry will be used.

The distance formula is given by:

$d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2$

Here

(x1,y1) = (5,4)

(x2,y2) = (-2,4)

$PQ = \sqrt{(-2-5)^2+(4-4)^2}\\=\sqrt{(-7)^2+(0)^2}\\= \sqrt{49}\\= 7\ units$

Hence,

The length of side PQ of the polygon is 7 units

Keywords: distance formula, coordinate geometry

Learn more about distance formula at:

#LearnwithBrainly

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