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Anettt [7]
3 years ago
13

I need the quadratic formula.

Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0
ax²+bx+c=0
4a²x²+4abx+4ac=0
4a²x²+4abx=-4ac
4a²x²+4abx+b²=b²-4ac
(2ax+b)²=b²-4ac
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The measure of EC bisects
stepladder [879]

Answer:

The value of x = 20

Step-by-step explanation:

Given:

∠BOC = 3x - 15

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Computation:

⇔ ∠BOC + ∠COD = 90

⇔ 3x - 15 + 2x + 5 = 90

⇔ 5x - 10 = 900

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5 0
3 years ago
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7 0
3 years ago
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Harlamova29_29 [7]

Answer:

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Step-by-step explanation:

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Hope this helps!

3 0
3 years ago
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photoshop1234 [79]

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