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Bezzdna [24]
2 years ago
5

Find p if 45 :72=72 40:p​

Mathematics
1 answer:
leonid [27]2 years ago
4 0
Here

45 :72 = 40:p
Or 45/72=40/p
Or 45p = 72*40

Or p = 2880/45

Or p= 64

Thank you
Ayanas
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Slav-nsk [51]

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\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}

\begin{cases} h=0\\ k=-7\\ p=-9 \end{cases}\implies 4(-9)(x-0)~~ = ~~[y-(-7)]^2 \\\\\\ -36x=(y+7)^2\implies x=-\cfrac{1}{36}(y+7)^2

4 0
2 years ago
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almond37 [142]

Answer:

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Square Root of 30: 5.47722557505- round it up

Step-by-step explanation:

70x70

7x7=49

add the 2 zeros at the end

4900

4 0
2 years ago
Read 2 more answers
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