Ask question

Ask question

All categories

2 years ago

14

The general form of a circle is given as x^2 + y^2 + 4x - 12y + 4 = 0.

1 answer:

stepan [7]2 years ago

7 0

If you can rewrite the formula as (x-a)² + (y-b)² = r², the center is at (a,b) and the radius is r.

If you work out this equation, and map it to the original, you will find that the +4x term hints that a = 2 (double product) and -12y hints that b=-6, and r=6.

So, the formula can be written as (x+2)² + (y-6)² = 6² and the center is at (-2,6) and the radius is 6.

You might be interested in

8.546 rounded to the nearest tenths?

nikitadnepr [17]

Answer:

8.550

Step-by-step explanation:

7 0

2 years ago

Please help giving brainlest!!<br> no links <br> no unnecessary comments<br> thank you<br> :)

seraphim [82]

Answer:

Last point is at (7,-3)

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

I will give brainliest answer

adell [148]

Answer: A=351.68 cm²

Step-by-step explanation:

To find the area of the shaded region, we would subtract the area of the circle by the area of the inner circle.

Area of Circle

$A=\pi r^2$

$A=\pi (11)^2$

$A=121\pi$

Area of inner (white) circle

$A=\pi r^2$

$A=\pi (3)^2$

$A=9\pi$

Now that we have the area to the circle and inner circle, we would subtract to find the area of the shaded region.

$A=121\pi -9\pi$

$A=112\pi$

$A=351.68 cm^2$

3 0

2 years ago

What does ± indicate when its used like 2±1?

boyakko [2]

Answer:

it is in quadratic equation meaning you use Plus or minus

6 0

2 years ago

Read 2 more answers

Describe the function over each part of its domain. State whether it is constant, increasing, or decreasing, and state the slope

vivado [14]

The function is illustrated below based on the information.

<h3>How to describe the function?</h3>

When x <= 8000

The cost remains constant at 0.35 when x increases from 0 to 8000. The slope of the cost function over this part is 0

When 8000 < x <= 20000

The cost remains constant at 0.75 when x increases from 8000 to 20000 and the slope of the cost function over this part is 0.

Learn more about functions on:

brainly.com/question/25638609

#SPJ1

5 0

1 year ago