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Juliette [100K]
3 years ago
5

The equation of the parabola whose focus is at (0, 5) and directrix at y = -5 is:

Mathematics
1 answer:
Romashka [77]3 years ago
5 0
For a parabola at vertex (0,0)
we see that we have to go up and down
therfor it opens up or down

since focus is above directix, it opens up
x^2=4Py
p is distance from directix to vertex
since it opens up, P is positive
from -5 to 0 is 5 units
x^2=4(5)y
x^2=20y
solve for y
divide both sides by 20
y=(1/20)x^2

first one
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iris [78.8K]

Answer:

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Step-by-step explanation:

The basic equation for slope is y=kx+b

In this equation, k stands for slope and b stands for y-intercept.

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kap26 [50]
Its not A. because , 98^2 = 9,604
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3 years ago
Lol please help find the value of x thank you
bagirrra123 [75]

Answer:

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Step-by-step explanation:

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2 years ago
A dozen muffins is 12 muffins. A recipe calls for 3/4 cup of almonds to make half a dozen muffins. Use a complex fraction to fin
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1) Firstly, let's set a proportion to find out how mny cups of almonds are needed.

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12 x

2)

Cross multiplying it:

6x = 12 * 3/4

6x = 9

x= 9/6

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