A circle has equation x2+y2-8x+2y-1=0 what is the radius of this circle
Question
Updated 7/23/2014 3:15:01 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [7/23/2014 3:14:52 AM], Edited by andrewpallarca [7/23/2014 3:22:57 AM]
s
Original conversation
User: A circle has equation x2+y2-8x+2y-1=0 what is the radius of this circle

Weegy: I don't know!

Question
Updated 7/23/2014 3:15:01 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [7/23/2014 3:14:52 AM], Edited by andrewpallarca [7/23/2014 3:22:57 AM]
Rating
8
A circle has equation x^2+y^2-8x+2y-1=0, the radius of this circle is 3 sqrt 2.
x^2+y^2-8x+2y-1=0
x^2-8x+16+y^2+2y+1=1+16+1
(x-4)^2+(y+1)^2=18
The center of the circle is (4, -1) and the radius is sqrt 18 = 3 sqrt 2.
Confirmed by andrewpallarca [7/23/2014 3:23:06 AM]

Questions asked by the same visitor
a circle has equation x2+y2-8x+2y-1=0 what is the radius of this circle
Weegy: Weegy will move on to the next Weegy expert. User: what (More)
Question
Updated 7/23/2014 3:14:02 AM
A circle has equation x^2+y^2-8x+2y-1=0, the radius of this circle is 3 sqrt 2.
x^2+y^2-8x+2y-1=0
x^2-8x+16+y^2+2y+1=1+16+1
(x-4)^2+(y+1)^2=18
The center of the circle is (4, -1) and the radius is sqrt 18 = 3 sqrt 2.
34,019,362
Popular Conversations
Which of the following best describes Dred Scott?
Weegy: User: Under the system of sharecropping, contracts usually favored
A strong negative feedback process can cause Earth's climate to reach ...
Weegy: A strong negative feedback process can cause Earth's climate to reach a state of balance.
Whats is the First step in selective breeding
Weegy: 2 + 2 = 4
True or False: The higher the BAL, the higher the risk of a fatal ...
Weegy: The higher the BAL, the higher the risk of a fatal crash. TRUE. User: All of the information your brain ...
Through which sense is rhythm best experienced in artworks?
Weegy: Rhythm is best experienced in artwork through the sense of sight. User: What is the meaning of life
which one of the following is a requirement when becoming a us ...
Weegy: You must have a basic knowledge of the history and government of the United States, is a requirement when ...
Reducing alcohol-related crashes in Florida by 10% would save more ...
Weegy: Reducing alcohol-related crashes by 10% would save \$180 million in claims payments and loss adjustment ...
Upward growth of cities has no environmental impact.
Weegy: Upward growth of cities has no environmental impact. FALSE. User: Upward growth usually occurs when ...
One main purpose of a Collin is to
S
L
Points 688 [Total 750] Ratings 3 Comments 658 Invitations 0 Online
S
L
L
Points 658 [Total 5025] Ratings 8 Comments 578 Invitations 0 Offline
S
L
P
P
Points 493 [Total 2888] Ratings 0 Comments 493 Invitations 0 Offline
S
L
Points 319 [Total 319] Ratings 10 Comments 219 Invitations 0 Offline
S
L
Points 250 [Total 250] Ratings 0 Comments 250 Invitations 0 Online
S
L
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Points 224 [Total 4163] Ratings 18 Comments 44 Invitations 0 Offline
S
L
1
1
1
Points 208 [Total 2988] Ratings 11 Comments 98 Invitations 0 Online
S
L
P
P
L
P
Points 186 [Total 6903] Ratings 6 Comments 126 Invitations 0 Offline
S
L
Points 166 [Total 669] Ratings 7 Comments 96 Invitations 0 Online
S
L
Points 123 [Total 193] Ratings 2 Comments 103 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.