15-06-2016
Mathematics

contestada

the equation x2+y2-2x+2y-1=0

Respuesta :

mathmate mathmate

20-06-2016

This is the equation of a circle, centred at (1,-1), radius sqrt(3), as follows
rewrite equation as
(x-1)^2-1+(y+1)^2-1=1, or
(x-1)^2+(y+1)^2=(sqrt(3))^2
Don`t know what else you`d like to do with it. lol

Answer Link

Otras preguntas

How to start a story? I have many ideas, but struggle to piece those ideas together. *Advice/suggestions*

What is the area of the figure? (See image above for figure and answer choices)

why does fingernail polish float on top of water?

What did Stalin do to consolidate his power? A. Killed dissidents B. Allowed free elections C. Closed all prison camps D. Created the Communist Party

Callie is pregnant. She has never liked vegetables and rarely eats them. However, she does not want her baby to have the same bad eating habits. If Callie wants

If a bank is unable to borrow reserves from the Fed funds market to meet its reserve requirement, where else might it borrow reserves? What is the name of the r

When x = 5, the value of the expression 20 Over negative 25 plus x –2(x – 10) is

According to the video game industry’s statistics, the average gamer is 34 years old. Imagine the standard deviation for age is 7.5 years. Leroy collected data

Mg emits radiation at 285 nm. Could a spectroscope be used to detect this emission?

Wind: A Renewable Source of Energy Fossil fuels such as coal, natural gas, and oil are formed from the fossils of dead plants and animals. The formation o