<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B2%7D%20%20%2B%20%20%5Cfrac%7B6%7D%7Bx%20%7D%20%20%3D%204" id="TexFormula1"

3 years ago

title=" \frac{x}{2} + \frac{6}{x } = 4" alt=" \frac{x}{2} + \frac{6}{x } = 4" align="absmiddle" class="latex-formula">
using quadratic equation....help me if you can

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

6 0

Multiply all terms by x

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Derive the equation of the parabola with a focus at (_5, 5) and a directrix of y = -1.

mars1129 [50]

Answer: Option D is correct.

Step-by-step explanation:

Since we have given that

focus = (-5,5)

and a directrix y= -1

Since, equation of parabola in this case will be

$(x-h)^2=4.a(y-k)$

Now, here

$y=k-a=-1\\\\\text { focus =(h,k+a)}\\\\\text{So,} k+a=5\\\\\text{ by solving these two equation , we get }\\\\a=3\text{ and } k=2$

So equation will be

$(x+5)^2=4\times 3(y-2)\\\\(x+5)^2=12(y-3)\\\\y=\frac{1}{12}(x+5)^2+2$

So, option D is correct .

4 0

3 years ago

Read 2 more answers

Someone please help me figure this question out!!

rosijanka [135]

If you subtract 1.1 from 5.8 you will end up with 4.7
then you subtract 10^7 from 10^8 which will give you 10^1
then you add the seven back which will give you your answer of
4.7 10^8

3 0

3 years ago

Help!!!<br> Find the distance between the pair of points

coldgirl [10]

Step-by-step explanation:

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