Answer:
centre = (2, 4)
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
Given
x² + y² - 4x - 8y - 5 = 0
Rearrange the x/y terms together and add 5 to both sides
x² - 4x + y² - 8y = 5
Use the method of completing the square on both the x/y terms
add ( half the coefficient of the x/y terms )² to both sides
x² + 2(- 2)x + 4 + y² + 2(- 4)y + 16 = 5 + 4 + 16
(x - 2)² + (y - 4)² = 25 ← in standard form
with centre (2, 4) and r = 
= 5
Answer:
I think u have to find the distance.
Each point is given a distinct letter and like wise you have to count the distance between the two points given.
Step-by-step explanation:
Like, 1)distance between A and R when A = -11 and R = -9
their distance is 2 units.
Likewise, 2) RY = 6 units
3) EU = 7 units
4) WD = 5 units
5) EL = 12 units
Answer:
im not sure but i need the points
Step-by-step explanation:
<h2>im not sure but i need the pointsnm</h2>
Answer: 
Solving for variable x
Move all terms containing x to the left, all other terms to the right
<u>Add -17 to each side of the equation</u>
<u></u>
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<u>Combine like terms: 17 + -17 = 0
</u>
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<u>Combine like terms: -3 + -17 = -20</u>
<u></u>
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<u>Divide each side by 2</u>
<u></u>
<u></u>
