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Anna11 [10]
3 years ago
7

Solve the system of equations.

Mathematics
1 answer:
gulaghasi [49]3 years ago
8 0

Step-by-step explanation:

x=0

y=-4

(1 point)

No, there isn't a more efficient way to solve this system.

Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.

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So. hmmm we know the arc entry has a vertical clearance of 66 feet, and is 46feet wide

notice the picture below.. if we move the arc to the origin, we end up with a parabola like so, from -23, 0 to 23, 0

now  \bf \boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}\qquad\qquad  vertex\ ({{ h}},{{ k}})\\\\
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\\\\\\
\textit{what's the value of "a"?  well, we know }
\begin{cases}
x=23\\
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\end{cases}
\\\\\\
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