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Harman [31]
3 years ago
13

A circle has a center at (4, -7) and a radius of 4 units. What is the equation of this circle?

Mathematics
1 answer:
Softa [21]3 years ago
7 0

Answer:

(x-4)^2+(y+7)^2=16

Step-by-step explanation:

A circle with radius r and centre (a, b) has an equation:

(x-a)^2+(y-b)^2=r^2

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What system of equations is shown on the graph below?
erma4kov [3.2K]

Answer:

The equation of the line passing through the points (-2,0) and (0,-4)

\frac{y - y1}{x - x1}  =  \frac{y2 - y1}{x2 - x1}

\frac{y - 0}{x  - ( -  2)}  =  \frac{ - 4 - 0}{0 - ( - 2)}  =  \frac{ - 4}{2}  =  - 2

y =  - 2(x + 2) \\ y =  - 2x - 4

2x + y =  - 4

The equation of the line passing through the points (0,-2) and (4,0)

\frac{y - y1}{x - x1}  =  \frac{y2 - y1}{x2 - x1}  \:

\frac{y - ( - 2)}{x - 0}  =  \frac{0 - ( - 2)}{4 - 0}

\frac{y + 2}{x}  =  \frac{1}{2}

x - 2y = 4

Option B

x minus 2 y = 4 and 2 x + y = negative 4

4 0
3 years ago
Read 2 more answers
Evaluate the function fx = 4 * 7^t for x= -1 and x=2
Alex73 [517]
Well what i think you're asking here...I apologie if I'm wrong but what I did was 

f(-1) = 4 * 7^t = 4/7 

and 

f(2) = 4 * 7^t = 196.

Is this what you wanted if not I can...try another way. 
6 0
3 years ago
How many half miles are in 12 miles?
adoni [48]
There are 24 half miles in 12 miles.

3 0
3 years ago
Quadrilateral ABCD is a square. BC = 10 What is the length of AC? A. 10 sqrt 2 B. 20 sqrt 3 C. 10 sqrt 3 D. Sqrt 100
bixtya [17]

A is the correct answer to this question because AC and BC differ because the B must be changed to an A.

4 0
3 years ago
Which statements about the hyperbola are true? check all that apply. the center is located at (0, 0). there is a vertex at (–6,
Vinvika [58]

The statements about the hyperbola are true are:

  • The center is located at (0, 0).
  • There is a vertex at (–6, 0).
  • The directrices are vertical lines.

<h3>What is a hyperbola?</h3>

It should be noted that a hyperbola simply means a open curve that has two branches.

Here, the center is located at (0, 0), there is a vertex at (–6, 0), and the directrices are vertical lines.

Learn more about hyperbola on:

brainly.com/question/3351710

#SPJ4

6 0
2 years ago
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