4 years ago

What is the center and radius of the circle with equation x2 + y2 - 4x + 22y + 61 = 0?

1 answer:

6 0

Hello,

$x^2+y^2-4x+22y+61=0\\\\
(x^2-4x+4) +(y^2+22y+121)-121-4+61=0\\\\
(x-2)^2+(y+11)^2=64


$

Center is (2,-11) and radius is 8

You might be interested in

VladimirAG [237]

Answer:

{2,3}

Step-by-step explanation:

The domain is the set of all the values of x. The range is the set of all the values of y.

6 0

3 years ago

Alexandra [31]

Answer: 506 students

Step-by-step explanation:

5 0

4 years ago

belka [17]

Answer:

6.6

Step-by-step explanation:

1 hour equals 60 minutes. 60 minutes decided by 9 cookies is 6.6 minutes per cookie

6 0

3 years ago

Nataliya [291]

Answer:

2/7

Step-by-step explanation:

The quotient is ...

$\dfrac{-16}{-56}=\dfrac{2\cdot8}{7\cdot8}=\boxed{\dfrac{2}{7}}$

A common factor of -8 can be cancelled from numerator and denominator.

3 0

3 years ago

olchik [2.2K]

ok ill try my best to

5 0

4 years ago