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kicyunya [14]
2 years ago
15

A. Y = x + 7 -5y + 3x = -13 systems of equations

Mathematics
1 answer:
Allushta [10]2 years ago
7 0
X = -11; y = -4; (-11, -4)

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If both triangles are congruent (that's what the sign means), then AD=CB, and CD=AB. Substituting what we are given into CD=AB,


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\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{llccll} f(x) = &{{ 1}}x^2&{{ -8}}x&{{ +15}}\\
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