3 years ago

A first number plus twice a second number is 8 twice the first number plus the second totals 25

Mathematics

1 answer:

Orlov [11]3 years ago

7 0

Answer:

x=14 y=-3

Step-by-step explanation:

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Write the equation of a circle with center (4, -5) and radius = square root of 13

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<h2>Hello!</h2>

The answer is:

The equation of the given circle is:

$(x-4)^{2}+(y+5)^{2}=13$

The equation of a circle is given by the following equation:

$(x-h)^{2} +(y-k)^{2}=r^{2}$

We are given the center point (4,-5) and the radius.

So,

Where:

$h=x=4\\k=y=-5\\r=\sqrt{13}$

Then, substituting into the circle equation, we have:

$(x-4)^{2} +(y-(-5))^{2}=(\sqrt{13})^{2}$

Hence, the simplified equation of the circle is:

$(x-4)^{2}+(y+5)^{2}=13$

Have a nice day!

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