miwink0a2doredeSchi miwink0a2doredeSchi

24-07-2016
Mathematics

contestada

What is the radius of a circle with the equation x2 + y2 – 14x + 10y = 250?

Respuesta :

Kunchan Kunchan

24-07-2016

x2 + y2 - 14x + 10y = 250
x2 -14x + 49 - 49 + y2 + 10x + 25 - 25 = 250
(x - 7)^2 - 49 + (y+5)^2 - 25 = 250
(x-7)^2 + (y+5)^2 = 250 + 49 + 25
(x-7)^2 + (y+5)^2 = 324

Therefore the radius, r
r = 324^0.5
r = 18

Answer Link

Otras preguntas

What is the range of the relation in the table below?

the number of cows in the field minus 12...

Does anyone know the Answer?!?

Hey there.Explain JJ Thomson's model.

how can i write a story

According to E. M. Forster A work of literature must provide more than factual accuracy or vivid physical reality... it must tell us more than we already know.

Read this excerpt from President Andrew Jackson's Message to Congress "On Indian Removal": It gives me pleasure to announce to Congress that the benevolent poli

Find equation in slope intercept form of the line passing through the points with given coordinates (-4,-2), (-2,2)

to collect data about the amont of time spent

When the results of an election are conclusive, is the winner known? Yes or No