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V125BC [204]
3 years ago
12

May someone explain please?

Mathematics
1 answer:
krok68 [10]3 years ago
3 0
X = 50 because they are on the same line and they are in a parallel line
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The archway of the main entrance of a university is modeled by the quadratic equation
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The answer is where the 2 equations intersect.

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From the second equation:

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y = -(21 - 4y)^2 + 6(21 - 4y)

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16y^2 + y - 168y + 24y + 441 - 126 = 0

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y = [-(-143) +/- sqrt ((-143)^2 - 4 * 16 * 315)]/ (2*16)

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When y = 5:

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