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Tresset [83]
3 years ago
12

I will mark you brainiest if you can answer this, please help

Mathematics
1 answer:
Ksivusya [100]3 years ago
3 0

Answer:2

Step-by-step explanation:

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Find 4ab when (a+b)=15 and (a-b)=12
Volgvan
A + b = 15 ..... eq 1
a – b = 12 ...... eq 2

So a = 15 – b
Substitute in eq 2 :

15 – b – b = 12
15 – 2b = 12
–2b = 12 – 15
b = 1.5

So a = 15 – 3/2 = 13.5

4ab = 4 x 13.5 x 1.5 = 81
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Answer: (-5, -3)

Step-by-step explanation:

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Answer:

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Verticle angles are the angles opposite of each side.

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I think for the 1 one the problem is 225=c^2

Step-by-step explanation:

you have to multiply 25x25 then 20x20 then 650-400=250. I'm not sure if I'm right.

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What is the difference between rational and irrational numbers
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