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mel-nik [20]
3 years ago
11

1. Often there are multiple ways to prove that lines are parallel. How easily do you recognize (1 point)

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
7 0

Answer:

I find it very easy to see different ways of proving lines parallel

Step-by-step explanation:

There are multiple ways of proving that lines are parallel and some of the ways of proving that lines are parallel includes ;

  • corresponding angles of the lines been equal
  • consecutive exterior angles of the lines are supplementary
  • consecutive interior angles of the lines are supplementary
  • pair of Lines been perpendicular to another line
  • pair of lines been parallel to another line
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If AB = 13 cm and BC = 12 cm, what is the length of AC?
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Using the Pythagorean theorem:


AC = √(13^2 - 12^2)

AC = √(169 -144)

AC = √25

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4 years ago
X²+y²-6x+14y-1=0<br> and please show your work so I can learn
Eva8 [605]

Hello there,

I hope you and your family are staying safe and healthy during this winter season.

x^2 + y^2 -6x+14y-1=0

We need to use the Quadratic Formula*

x =\frac{-b+\sqrt{b^2}-4ac }{2a} , \frac{-b-\sqrt{b^2} -4ac }{2a}

Thus, given the problem:

a = 1, b=-6, c=y^2+14y-1

So now we just need to plug them in the Quadratic Formula*

x=\frac{6+2\sqrt{(-6)^2-4(y^2+14y-1)} }{2} , x=\frac{6-\sqrt{(-6)^2-4(y^2+14y-1)} }{2}

As you can see, it is a mess right now. Therefore, we need to simplify it

x=\frac{6+2\sqrt{10-y^2-14y} }{2}, x = \frac{6-2\sqrt{10-y^2-14y} }{2}

Now that's get us to the final solution:

x=3+\sqrt{10-y^2-14y}, x=3-\sqrt{10-y^2-14y}

It is my pleasure to help students like you! If you have additional questions, please let me know.

Take care!

~Garebear

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3 years ago
How do maps use the coordinate plane for locating towns?
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Answer:

Your street name and house number furnish your absolute location. Latitude and longitude provide absolute location for a place on the globe. We can locate places on the globe by determining where lines on latitude and longitude cross.

Step-by-step explanation:

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Answer:

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Five more than twice a number is 7​
never [62]

answer is 1.

twice one is two. five more than two is 7.

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3 years ago
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