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3 years ago

Please help 20 points⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

5 0

Answer:

BC equals 5

Step-by-step explanation:

they are parallel to each other making them equal sides

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Answer:

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Hello, I am currently very stuck with this problem and I am unsure as to how I would solve it.

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We have the equation

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Let's complete the square, to do it let's add and subtract 25 on the right side

$\begin{gathered} 20y=x^2-10-15+25-25 \\ \\ 20y=(x-5)^2-15-25_{} \\ \\ 20y=(x-5)^2-40 \\ \\ \end{gathered}$

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$\begin{gathered} y=\frac{1}{20}(x-5)^2-2 \\ \\ \end{gathered}$

Now we can already identify the vertex because it's in the vertex form:

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Now we can continue and find the focus, the focus is

$\mleft(h,k+\frac{1}{4a}\mright)$

We have a = 1/20, therefore

$\begin{gathered} \mleft(5,-2+5\mright) \\ \\ (5,3) \end{gathered}$

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