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Pepsi [2]
2 years ago
6

Why does the term angle need to be defined prior to defining perpendicular lines?

Mathematics
2 answers:
igor_vitrenko [27]2 years ago
8 0

Perpendicular lines<span> are two or more lines that intersect at a 90-degree angle, like the two lines drawn on this graph, and the x and y axes that orient them.</span>

<span> </span>

Ahat [919]2 years ago
4 0

Answer:

Perpendicular means "at right angles".

A line meeting another line at a right angle, or 90° is said to be perpendicular to it.

This is why we need to know what are angles first.

Angles are defined as the space between two intersecting lines close to the point where they meet.

So, when we say perpendicular lines meet at 90° angles, we must know the definition of angles.

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If we place what the husband earns as h and what the wife earns as w, we can begin...
w + h = 110000

but w = 2h - 16000

We can turn it into..

2h - 16000 + h = 110000

Which we can then combine into..

3h - 16000 = 110000

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Divide by three...

h = 42000

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The husband earns 42,000$ a year

Bonus: The wife then earns 68,000$

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Because this is the original equation, we are correct.



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Which expression is equivalent to 15a^8b^4/5a^4b?<br> 3a^2b^4<br> 3a^4b^3<br> 10a^4b^3<br> 10a^4b^4
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Answer:

3 a^12 b^5

Step-by-step explanation:

Simplify the following:

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Answer: 3 a^12 b^5

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3 years ago
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