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hjlf
3 years ago
5

When the sum of 7 and twice a positive number is subtracted from the square of the​ number, 0 results. find the number?

Mathematics
1 answer:
Lilit [14]3 years ago
3 0
<span>x^2 - (7 + 2x) = 0
x^2 - 2x - 7 = 0
Solve this using the quadratic equation, only the positive solution is wanted</span>
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The vertex form of the equation of a parabola is y=3(x-40)^2-22. What is the standard form of the equation?
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<span>y=3(x-40)^2-22
y = 3(x^2 - 80x + 1600) - 22
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answer
</span><span> standard form of the equation
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seropon [69]
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8 0
3 years ago
AB ≅ BC and AD ≅ CD What additional information would make it immediately possible to prove that triangles AXB and CXB are congr
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It is given that, B ≅ BC and AD ≅ CD  

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from the given information ABCD is a square

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3 years ago
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