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Tresset [83]
3 years ago
7

Could someone please tell me the answer

Mathematics
1 answer:
Anna007 [38]3 years ago
4 0

Answer: 12.0

Step-by-step explanation: We need to find the length of one of the leg piece, so this is how we will set up our equation (x is the missing side length):

1. x^{2} + 5^{2} = 13^{2} (Simplify the square roots)

2. x^{2} +25 = 169 (Subtract 25 from 169)

3. x^{2} = 144 (Take the square root of both sides)

4. x = 12 or 12.0.

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It seems that some the work is already here, but I'd be glad to!! So for #3 which is 9x^2+15x, we can factor out both a 3 and an x (3x) so we know that 3x * 3x =9x^2 and 3x * 5 = 15x so once we take the 3x out of the equation, we are left with 3x(3x+5) and that's as far as you can factor.
For #4, we see that the common factor is 10m because 10m * 2n = 20mn and 10m * 3 = 30m so once we take 10m out of the original, it becomes 10m(2n-3)
For #5, this one the common factor is 4xy because 4xy * 2xy=8x^2y^2 and 4xy*x= 4x^2y and 4xy*3=12xy so once we take the 4xy out of the equation, it becomes 4xy(2xy-x-3)
Hope this helps!
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2 years ago
Someone who isn't a bot, please answer this.
lesantik [10]

Answer:

answer is here

Step-by-step explanation:

https://www.mathpapa.com/algebra-calculator.html

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Thank you for posting your question here at brainly. Feel free to ask more questions.   
<span>
The best and most correct answer among the choices provided by the question is 0 (zero)</span>.          <span>
<span>
Hope my answer would be a great help for you. </span> </span>
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