Question and answer
Find the center of the following equation. x 2 + y 2 + 8 x - 6 y - 15 = 0
Question
Asked 11/10/2014 8:09:18 AM
Updated 11/10/2014 11:24:59 PM
1 Answer/Comment
Flagged by janezeshun [11/10/2014 11:22:42 PM]
Get an answer
Original conversation
User: Find the center of the following equation. x 2 + y 2 + 8 x - 6 y - 15 = 0

Question
Asked 11/10/2014 8:09:18 AM
Updated 11/10/2014 11:24:59 PM
1 Answer/Comment
Flagged by janezeshun [11/10/2014 11:22:42 PM]
New answers
Rating
5
x^2 + y^2 + 8x - 6y - 15 = 0
(x + 4)^2 - 16 + (y - 3)^2 - 9 - 15 = 0
(x + 4)^2 + (y - 3)^2 = 40
(-4 , 3) is the center of equation.:x^2 + y^2 + 8x - 6y - 15 = 0 .
Added 11/10/2014 11:24:59 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/11/2014 12:51:23 AM]
Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
What is the solution set of 2x(x - 1) = 3? User: Which of the following constants can be added to x2 - 10x to form a perfect square trinomial? 10 25 100 User: Write the quadratic equation in factored form. Be sure to write the entire equation. x2 + x - 12 = 0
Weegy: (x+4)(x-3)=0 User: If the quadratic formula is used to find the solution set of 3x 2 + 4x - 2 = 0, what are the solutions? User: What is the value of b2 - 4ac for the following equation? 2x2 + 3x = -1 0 1 17 Weegy: The answer is: b.1 [smile] User: What is the solution set of 7x 2 + 3x = 0? {0, 3/7} {0, -3/7} {0, -4/7} Weegy: The solution set of 7x^2 + 3x = 0 is: B. {0, -3/7}. User: What is the solution set of x 2 + 5x + 1 = 0? User: What is the solution set of (3x - 1)2 = 5? (More)
Question
Not Answered
Updated 11/11/2014 7:37:43 AM
2 Answers/Comments
(3x - 1)^2 = 5
3x - 1 = ± sqrt 5
3x = 1 ± sqrt 5
x = (1 ± sqrt 5)/3
Added 11/11/2014 7:35:35 AM
This answer has been confirmed as correct and helpful.
x^2 + 5x + 1 = 0
a = 1, b = 5, c = 1
discriminant = b^2 - 4ac = 25 - 4 = 21
x = (-5 ± sqrt 21)/2
Added 11/11/2014 7:37:43 AM
This answer has been confirmed as correct and helpful.
The radius of the circle whose equation is (x + 4)² + (y - 2)² = 36 is 36 18 6
Weegy: If the equation of a circle is (x + 5)^2 + (y - 7)^2 = 36, its radius is 6. User: The distance between the points (5, -2) and (-7, 3) is 5 29 13 (More)
Question
Updated 11/12/2014 10:56:02 PM
1 Answer/Comment
The distance between the points (5, -2) and (-7, 3) is 13 .
Let the distance is d
d^2 = (-7-5)^2 + {3 - (-2)}^2
d^2 = 144 + 25
d^2 = 169
d = 13
Added 11/12/2014 10:45:36 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/12/2014 10:56:22 PM], Rated good by jeifunk
Solve (x + 2)(2x + 3) = 6 {-2, -3/2} {-7/2, 0} {0}
Question
Not Answered
Updated 11/15/2014 2:38:32 PM
1 Answer/Comment
The solution set for (x + 2)(2x + 3) = 6 is {-7/2, 0}.

(x + 2)(2x + 3) = 6;
2x^2 +3x + 4x + 6 = 6;
2x^2 + 7x + 6 - 6 = 0;
2x^2 + 7x = 0;
x(2x + 7) = 0;
x = 0;
2x + 7 = 0; 2x = -7; x = -7/2
Added 11/15/2014 2:38:32 PM
This answer has been confirmed as correct and helpful.
Farsightedness is corrected with a convex concave lens.
Weegy: Farsightedness is corrected with a Convex lens. (More)
Question
Expert Answered
Updated 11/4/2014 9:21:02 AM
0 Answers/Comments
What is the midpoint of the line segment whose endpoints are (-8, 12) and (-13, -2)? (-10.5, 5) (-10.5, 7) (-2.5, 7)
Weegy: The midpoint of the line segment whose endpoints are (-8, 12) and (-13, -2) is (-10.5, 5). ((x1+x2)/2, (y1+y2)/2); = ((-8 - 13)/2, (12 - 2)/2) = (-21/2, 10/2) = (-10.5, 5) User: What is the length of the hypotenuse of a right triangle whose legs have lengths of 5 and 12? 13 15 17 Weegy: The length of the hypotenuse of a right triangle whose legs have lengths of 5 and 12 is 13. User: Find the midpoint of the line segment whose endpoints are (3, 10) and (7, 8). (2, 1) (5, 9) (11, 12) Weegy: Find the midpoint of the line segment whose endpoints are (3, 10) and (7, 8) is: (5, 9). M = [(x2 + x1)/2] , [(y2 + y1)/2]; = [(3 + 7)/2] , [(10 + 8)/2]; = (10, 2) , (18, 2); = (5, 9) User: What is the equation of a circle whose center is at the origin and whose radius is 16? x2 + y2 = 4 x2 + y2 = 16 x2 + y2 = 256 (More)
Question
Not Answered
Updated 11/15/2014 2:39:44 PM
1 Answer/Comment
The equation of a circle whose center is at the origin and whose radius is 16 is: x^2 + y^2 = 256
Added 11/8/2014 4:10:30 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [11/15/2014 2:39:54 PM]
40,401,263
questions answered
GET
Answers.
GET THE APP.
weegy*
*
Get answers from Weegy and a team of really smart live experts.
Popular Conversations
The route of administration is the path by which a drug enters ...
Weegy: The circulatory system also called the cardiovascular system, is an organ system that permits blood to circulate ...
7/13/2026 8:37:51 PM| 3 Answers
Converting 4.9 kilograms to the US customary system would equal 11
Weegy: Converting 4.9 kilograms to the US customary system would equal 11 pounds. User: How many centimeters are in ...
7/14/2026 12:53:28 AM| 2 Answers
Which of the following statements about contributory negligence is ...
Weegy: The concept of contributory negligence allows the courts to apportion responsibility between the parties.- is ...
7/20/2026 8:51:51 PM| 2 Answers
A thermos bottle _____. reduces energy loss due to radiation reduces ...
Weegy: A thermos bottle reduces energy loss due to convection.
7/11/2026 8:26:01 PM| 1 Answers
Which one of the following sentences is an example of a metaphor? A. ...
Weegy: A metaphor is a literary figure of speech that describes a subject by asserting that it is, on some point of ...
7/11/2026 8:32:37 PM| 1 Answers
The barcoding process begins with the
Weegy: The barcoding process begins with the company getting a GS1 Company Prefix. User: The barcoding process ...
7/13/2026 7:58:31 PM| 1 Answers
_______ is considered the father of American pharmacy.
Weegy: William Procter Jr. is considered the father of American pharmacy. User: Ilsa is a good manager because she ...
7/13/2026 8:02:41 PM| 1 Answers
S
Points 4 [Total 4] Ratings 0 Comments 4 Invitations 0 Online
S
L
P
1
1
1
Points 3 [Total 1235] Ratings 0 Comments 3 Invitations 0 Offline
S
Points 1 [Total 1] Ratings 0 Comments 1 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.