Help me please Which polygons are similar to palygon a

Mathematics

1 answer:

ElenaW [278]3 years ago

3 0

Answer:

I believe it's B because they look very similar

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Which is the equation of a parabola with a directrix at y=2 and a focus at (5,0)

CaHeK987 [17]

Check the picture below, so the parabola looks more or less like so.

the vertex is always half-way between the focus point and the directrix, and since the parabola is opening downwards, the "p" distance is negative.

$\textit{vertical parabola vertex form with focus point distance} \\\\ 4p(y- k)=(x- h)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h,k+p)}\qquad \stackrel{directrix}{y=k-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\cap}\qquad \stackrel{"p"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill$

$\begin{cases} h=5\\ k=1\\ p=-1 \end{cases}\implies 4(-1)(y-1)~~ = ~~(x-5)^2\implies -4(y-1)=(x-5)^2 \\\\\\ y-1=-\cfrac{1}{4}(x-5)^2\implies y=-\cfrac{1}{4}(x-5)^2 + 1$

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andreyandreev [35.5K]

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Here are the scores that Jenna has received on her seven quizzes:

allsm [11]

Answer:

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Step-by-step explanation:

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An airplane is flying at a velocity of 500 miles per hour due north when it encounters a wind blowing out of the west at 50 mile

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V 1 = 500 mph,
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Step-by-step explanation:

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