1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
prisoha [69]
3 years ago
11

Find the center and radius when x^2+y^2+4x-4y=17

Mathematics
2 answers:
Gekata [30.6K]3 years ago
6 0

Answer:

Center: (-2,2)

Radius:5

Step-by-step explanation:

The first step in this problem is to complete the square and to find the equation of this circle in standard form.

x^2+y^2+4x-4y=17 can be rearranged to be:

x^2+4x+y^2-4y=17

Now, you can begin to complete the square with both the x and the y:

(x^2+4x+4)-4+(y^2-4y+4)-4=17

Adding 8 to both sides and finishing the squares:

(x+2)^2+(y-2)^2=25(x+2)^2+(y-2)^2=25

The coordinates of the center of the circle are (-2,2), and the radius is \sqrt{25}=5. Hope this helps!

coldgirl [10]3 years ago
3 0

Answer:

the center is (-2,2) and the radius is 5

You might be interested in
I NEED HELP ASAP (will give brainiest) 20 POINTS
BlackZzzverrR [31]

Answer:

the anwser is y=5600

I'm going to just go by this because of research and you didn't show the 4 problems so if this fixes your question then there you go

4 0
3 years ago
HELP!!!!!!!! For readers who cant see it says " A rectangular play area is 8 yards long. The expression 56+8x represents the are
ale4655 [162]

Answer:

the X represents the width, since to get the area, you have to multiply length times width

Hope that helps!

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=g%28t%29%20%3D%20%20%7Bt%7D%5E%7B3%7D%20%20%2B%20%20%7B2t%7D%5E%7B2%7D%20%20-%2010t%20-%208" i
-Dominant- [34]

Answer:

Step-by-step explanation:

for example

We have to write the polynomial P(x) = 5x^3 -2x^2 + 5x - 2 as a product of linear factors.

P(x) = 5x^3 -2x^2 + 5x - 2

=> P(x) = x^2( 5x - 2) + 1( 5x - 2)

=> P(x) = (x^2 + 1)(5x - 2)

4 0
2 years ago
Solve for c.<br> 15c – 9c + 2c – 6c = 8
den301095 [7]

Answer:

<h2>c = 4</h2>

Step-by-step explanation:

15c-9c+2c-6c=8\qquad\text{combine like terms}\\\\(15-9+2-6)c=8\\\\2c=8\qquad\text{divide both sides by 2}\\\\\dfrac{2c}{2}=\dfrac{8}{2}\\\\\huge\boxed{c=4}

4 0
3 years ago
Read 2 more answers
This isosceles triangle has two sides of equal length, a,
anygoal [31]

Answer:

Step-by-step explanation:

2a + b = 15.7

2(6.3) + b = 15.7

b = 3.1

3 0
3 years ago
Other questions:
  • A store sells baskets for 50% off the retail price. The retail price of a basket is $24. What is the sale price?
    9·2 answers
  • Find the area of a circle that has a radius of 18 centimeters
    11·2 answers
  • What’s the greatest common factors for 24 and12
    5·1 answer
  • What is the meaning of the word lean in this sentence?
    13·1 answer
  • What is the volume of the pyramid? PF
    12·1 answer
  • True or false? Postulates are statements that are accepted without question or justification
    5·2 answers
  • PLEASEEEE HELPPP!!!!
    14·1 answer
  • In a Harris poll of 514 human resource professionals, 90% said that the appearance of a job applicant is most important for a go
    7·1 answer
  • Find the volume of the cylinder
    14·1 answer
  • Find the equation of a line parallel to line y=6 that passes through the point (-2,-1)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!