karen101101 karen101101

19-03-2020
Mathematics

contestada

What is the radius of a circle with the equation x^2 +y^2+ 2x + 4y - 9 = 0?

Respuesta :

measroth19 measroth19

16-04-2020

Answer:

x^2+y^2+2x+4y-9=0

x^2+2x+y^2+4y=9

x^2+2.1.x+1-1+y^2+2.2.y+4-4=9

(x+1)^2+(y+2)^2=9+1+4=14

R^2=14

R=sqrt14=3.742

Step-by-step explanation:

Answer Link

Otras preguntas

find the domain and range of f(x) = 2 square root of x-2

Title IX of the Education Act of 1972 has to do with discrimination based on gender. discrimination based on religion. discrimination based on ethnic origin. d

what is 36/3n simplest form

how many grams of carbohydrates are in a product that contains 160 calories from carbohydrates?

How did the signing of the Magna Carta affect the lives of ordinary townspeople of the 13th century?

87 makes out of 100 as a percentage

5 pound bag cost 3.50 what is unit rate

What is the height of a cylinder? A. The height of a cylinder is the same as its diameter. B. The height of a cylinder is the same as its radius. C. The heig

What's 28 feet 2 1/2 inches in meters?

Larry rides his bike 5/6 mile 4 times a week. How far does Larry ride his bike each week?