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Liono4ka [1.6K]
2 years ago
11

Please help me :):)):):

Mathematics
1 answer:
Verdich [7]2 years ago
3 0

Answer:

12

Step-by-step explanation:

5^2 + b^2 = 13^2

25 + b^2 = 169

169-25= 144

take the square root of 144

answer: 12

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Please answer this and thank you<br><br> If DE=4x+10, EF=2-1, and DF=9x-15, find DF.
professor190 [17]
I hope that 2-1 means 21.

DE + EF = DF
4x + 10 + 21 = 9x - 15
4x + 31 = 9x - 15
31 = 9x - 4x - 15
31 = 5x - 15
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x = 9 1/5 = 9.2

You want 9x - 15
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82.8 - 15
67.8 <<<<< answer. 
If I have given the wrong meaning to 2-1 (which could mean 1) leave another note and I will correct my work. 
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3 years ago
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4 0
3 years ago
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Alex73 [517]

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285 miles in 5 hours
4 0
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Read 2 more answers
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fenix001 [56]

Answer:

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Step-by-step explanation:

I hope it helped U

stay safe stay happy

3 0
2 years ago
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