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Stels [109]
3 years ago
12

I need help does anyone know?

Mathematics
2 answers:
Rzqust [24]3 years ago
7 0

Answer:1 4/5

Step-by-step explanation:

const2013 [10]3 years ago
4 0

Answer:

I think its 2 4/5

Step-by-step explanation:

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Using the following equation, find the center and radius of the circle: x^2 + y^2 +2x − 4y − 20 = 0
DanielleElmas [232]
You have to complete the squares on both the x terms and the y terms in order to solve this. Move the 20 over to the other side so it's negative. Group the x terms together and complete the square to get (x^2+2x+1) and then do the same with the y terms: (y^2-4y+4). You have to add 1 and 4 to other side with the 20 to get a 25. Then create 2 perfect square binomials within each x and y value to get the vertex coordinates: (x+1)^2 + (y-2)^2 = 25. This tells us that the vertex is located at (-1, 2) and the radius is the square root of 25 which is 5.So the answer is the first choice above.
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3 years ago
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Step-by-step explanation:

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2 years ago
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lozanna [386]

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Step-by-step explanation:

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3 years ago
What type of number is
eimsori [14]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Substitution Method<br>2x+5y=-1<br>y=3x+10​
Grace [21]
Substitution for both equations is (-3,1)
8 0
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