Seudónimo Seudónimo

21-07-2014
Mathematics

contestada

given the equation of a circle x^2+y^2-10x+4y+13=0. find its center and radius. i am having trouble please help

Respuesta :

konrad509 konrad509

21-07-2014

[tex] x^2+y^2-10x+4y+13=0\\ x^2-10x+25+y^2+4y+4-16=0\\ (x-5)^2+(y+2)^2=16\\\\ \hbox{center}=(5,-2)\\ r=4[/tex]

Answer Link

Otras preguntas

Which is true of the DNA produced by replication?

if the lengths of two sides of a triangle are 24 and 18, what is the largest possible integer length of the third side of the triangle?

A designer places four identical tiles on a surface and spaces them 3 5/16 inches apart. Each tile is 7 1/4 inches wide. What is the length from the outside edg

Assuming that you can earn an annual return of 8.25% on your next most attractive investment, how much is the security worth to you today? a) $31,205 b) $18,9

The kind of therapy that involves talking things out with a professional is called __________________.

Tim has $65 to spend at the sporting goods store. He buys 3 balls for $6 each. How many $8 sports towels can Tim buy? *

A garden is made up of 4 triangles. A gardener wants to put a fence around the garden to keep animals from eating the vegetables. How much fence should the gard

What is the y-intercept of the line with the equation y =4x+2 -2 4 2 -1/2

Substitute in the value a=4 and simplify: 5a + 9 + 10a

Express the amount that results from 100 dollars invested at 5 percent compounded continuously after a period of 2 years.