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2 years ago

What is the equation of a circle with center (1, -4) and radius 2?

Mathematics

1 answer:

kvv77 [185]2 years ago

7 0

Answer:

(x-1)^2 + (y+4)^2 = 4

Step-by-step explanation:

The equation for a circle is given by

(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

(x-1)^2 + (y- -4)^2 = 2^2

(x-1)^2 + (y+4)^2 = 4

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VladimirAG [237]

Answer: First option.

Step-by-step explanation:

You can idenfity in the figure that $\angle FCE$ is formed by two secants that intersect outside of the given circle.

It is important to remember that, by definition:

$Angle\ formed\ by\ two\ Secants=\frac{1}{2}( Difference\ of\ intercepted\ Arcs)$

Knowing this, you can set up the following equation:

$m\angle FCE=\frac{1}{2}(BD-FE)$

Therefore, you must substitute values into the equation and then evaluate, in order to find the measure of the angle $\angle FCE$ .

This is:

$m\angle FCE=\frac{1}{2}(112\°-38\°)\\\\m\angle FCE=37\°$

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3 years ago

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Akimi4 [234]

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3 years ago

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Evgesh-ka [11]

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3 years ago

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What is the y intercept of the functionsl f(x)=-2/9+1/3

Wittaler [7]

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2 years ago

one number is 6 more than the other number. also, 7 times the smaller number is equal to 6 times the larger number. find the two

densk [106]

Answer:

x = 36; y = 42

Step-by-step explanation:

x+6 = y

7x = 6y

7x = 6(x+6)

7x = 6x+36

-6x -6x

x = 36

_________

y = 36+6

y = 42

_________

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