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Svetllana [295]
3 years ago
10

If RY=7x+4, YC=10x-2, then what is the value of RC?

Mathematics
1 answer:
irina1246 [14]3 years ago
5 0
If RY + YC = RC
7x+4=10x-2
3x=6
x=2
18+18=36=RC
The value of RC is 36
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Which set of numbers could be the length of the sides
Svetllana [295]

Answer: Choice C)  {6, 9, 12}

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Explanation:

Something like choice A can't form a triangle because the first two sides add to 6+9 = 15, which is <u>not</u> longer than the third side 15. We need to have x+y > z to be true. The same goes for choice B as well because 3+3 = 6 is too small compared to the third side 7. Choice D is similar to choice A.

In short, we can rule out choices A, B, and D.

The only thing left is choice C. Picking any two sides leads to having that sum be larger than the third side

  • 6+9 = 15 which is larger than 12
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So the conditions of the triangle inequality theorem work out here, and we have a triangle.

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Can you help find the length of the missing side of each right triangle
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Answer:

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Step-by-step explanation:

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