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2 years ago

What is the center and radius of a circle whose equation is x2 + y2 -2x -6y -5 = 0?

Mathematics

1 answer:

ddd [48]2 years ago

4 0

x²+y²-2x-6y-5=0

x²-2x+y²-6y=5

x²-2x+1+y²-6y+9=5+1+9

(x-1)²+(y-3)²=15

(x-1)²+(y-3)²=(V15)²

-> centre of the circle: C(-1,-3)

-> radius of the circle: V15

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3 years ago

Which set of points is not coplanar?

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we know that

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3 years ago

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A bookmark is shaped like a rectangle with a semicircle attached at both ends. The rectangle is 18 cm long and 4 cm wide. The di

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the answer is 84.56

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3 years ago

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Answer:

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Hope it helps Have an wonderful day! :)

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3 years ago