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PolarNik [594]
3 years ago
8

Which is the directrix of a parabola with equation X^2=8y

Mathematics
1 answer:
aleksklad [387]3 years ago
4 0
Alright so, After rewriting the equation in a standard parabola, you get:
4 x 2 (y-0) =(x - 0)^2

Simplify it to get: 
y= 0-p
y= 0-2

When you simplify that, your answer is:
y=-2

There you go folks, just saved you from reading that long paragraph of an answer the other guy has (I don't even think the answer is in there lol, I think he just wanted to help people solve it but still most people come here for answers)
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N less than 7

Step-by-step explanation:

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denis-greek [22]

Answer:

c. 441ft^2

Step-by-step explanation:

Area is height times length and since it's a square, safe to say that the sides are equal in length. So square root both of the given areas of the 2 square:

\sqrt{841} = 29

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Now u have side b and c of the triangle, it's a right triangle so use the Pythagorean theorem a^2 + b^2 = c^2

a^2 + b^2 = c^2

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21^2 = 441

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Step-by-step explanation:

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4 ft, 8 ft, and 10 ft are in simple multiple of 2

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