destinylit destinylit
  • 02-04-2017
  • Mathematics
contestada

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

Respuesta :

kaveejethwa
kaveejethwa kaveejethwa
  • 02-04-2017
complete the square .

x^2-14x = (x-7)^2-(-7)^2 
             = (x-7)^2-49
y^2+10y = (x+5)^2-(5)^2
              =(x+5)^2-25
(x-7)^2+(y+5)^2-49-25=250
(x-7)^2+(y+5)^2=324
                         =sqrt 324
                         =18
Answer Link

Otras preguntas

What is the formula for Slope-Intercept Form of the Line
Rewrite the rational exponent as a radical by extending the properties of integers exponents. 2^3/4 / 2^1/2
IDEAS FOR RECONSTRUCTION, explain why they are good ideas?
The song “America” by Neil Diamond conveys a positive message about what often contentious issue?
What is English Literature??
Where does the Liberty Bell hang?
In 1803, the United States bought Louisiana Territory from France. The deal, known as the Louisiana Purchase, doubled the size of the U.S. and opened a new fro
Which poem-turned-song, written by Katharine Lee Bates, was originally called “Pikes Peak” and describes our country’s natural splendor and the patriotism of i
The 555-foot-tall Washington Monument in Washington, D.C., is an example of which of the following types of structures? a. pyramid b. geodesic dome c. obeli
The heads of which presidents are carved into Mount Rushmore?