3 years ago

How do you do this???????

Mathematics

1 answer:

pychu [463]3 years ago

5 0

The answer to the question is A

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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 .

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2 years ago

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I need help please, the question is The temperature at 6am is 12 F. During the next twelve hours, the temperature increases 25 F

SIZIF [17.4K]

Answer:

14 degrees

Step-by-step explanation:

12 + 25 - 23 = 14

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3 years ago

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matrenka [14]

That’s the answers hope this helps.

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What percentage of the data values represented on a box plot falls between the minimum value and the lower quartile?

Butoxors [25]

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Attached solution with steps.

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