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3 years ago

Which is the center of a circle whose equation is x2+y2+4x-8y+11=0?

Mathematics

1 answer:

Nikolay [14]3 years ago

6 0

Answer:

Center (-2 , 4)

Step-by-step explanation:

x^2 + 4x + y^2 - 8y = - 11

(x^2 + 4x + (4/2)^2 + (y^2 - 8y + (8/2)^2 ) = - 11 + 4 + 16

(x + 2)^2 + (y - 4)^2 = 9

Center (-2, 4)

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Vitek1552 [10]

Answer:

Step-by-step explanation:

At home depot

Price of Christmas tree = $149.00

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Amount discounted = 15% of $149

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Amount she paid = $126.65

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Discount = 260%

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3 years ago

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Ilya [14]

Answer:

Step-by-step explanation:

10^2/5^2

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5 to the 2nd power is 25

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