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3 years ago

Can someone help on this please

Mathematics

2 answers:

Darya [45]3 years ago

5 0

For the first one it’s n = 6 and for the second one it’s n = 7.

hope it helped.

Keith_Richards [23]3 years ago

4 0

Answer:

NO GACHA PLAYER

Step-by-step explanation:

BREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

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Answer:

$y=-\frac{1}{4}(x-2)^{2}+9$

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

Given:

Focus of the parabola is at $(2,8)$ .

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$(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9$

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3 years ago