What is the equation of the parabola, in vertex form, with vertex at (-2,-4) and

Mathematics

1 answer:

Arlecino [84]2 years ago

8 0

Answer:

Step-by-step explanation:

The distance between the vertex and the directrix is 4 units, that means that p = 4 in the equation

$(y-k)^2=4p(x-h)$ and h and k are the coordinates of the vertex. Filling in:

$(y+4)^2=4(4)(x+2)$ which simplifies to

$(y+4)^2=16(x+2)$ choice C

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7. Find the sum or difference.<br> -2(d +1) + (6d +4)

Arturiano [62]

Answer:

Step-by-step explanation:

Sum

-2d + 1 + 6d + 4

Solving like terms

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Difference

-2d + 1 - 6d - 4

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4 0

2 years ago

Circle a has a radius of 3 and circle b has a radius of 11. if the idstance between the center of the circles in 17, find the le

Andrews [41]

Use Pythagorean Theorem:
a² + b² = c²
"a" is one side of the right triangle.
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2 years ago

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MariettaO [177]

Answer:

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Step-by-step explanation:

If you dont know the value of x you cant solve the problem fully