What is the equation of this circle?

Mathematics

1 answer:

madreJ [45]2 years ago

3 0

Answer:

is a way to express the definition of a circle on the coordinate plane.

Step-by-step explanation:

We know that the general equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius. So add 21 to both sides to get the constant term to the righthand side of the equation. Then complete the square for the y terms.

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3 years ago

Read 2 more answers

PlZ HELP ME I REALLY NEED THE ANSWERS. WILL GIVE BRAINLIEST. THANKYOU SO MUCH!!!

Dovator [93]

Answer:

Answers are listed hoping that they make sense XD

Step-by-step explanation:

1. -0.5

2. 7

3. -23

I just substituted the value given from x and solved for y. I hope that is what the question is asking for.

Hope this helps :)

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3 years ago

What is the value of x in the equation 1/2x - 3/4 = 3/8 - 5/8

Kitty [74]

The answer

x = 1

step by step

$\frac{1}{2} x - \frac{3}{4} = \frac{3}{8} - \frac{5}{8} \\ \frac{1}{2} x = \frac{3}{8} - \frac{5}{8} + \frac{3}{4} \\ \frac{1}{2} x = \frac{3}{8} - \frac{5}{8} + \frac{6}{8} \\ \frac{1}{2}x = \frac{4}{8} \\ \frac{1}{2} x = \frac{1}{2} \\ x = 1$