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

Which of the following is not a challenge to the Maasai way of life? A. the declining lion population B. encroachment by farmers C. the loss of land to national

Loughshinny is a village in Ireland, about 15 km north of Dublin. This place has a very nice exposure of rocks from the late Carboniferous. A) What type of defo

how many moles of XeO2 are in 67.9 grams

explain why 2+x and x+3 are equivalent

NO LINKS. WHAT IS Decolonization IN YOUR OWN WORDS INCLUDE 2 FACTS. (COLD WAR) (20 points)

Trapezoid A and trapezoid B as shown on the coordinate grid. Describe three basic transformations on trapezoid A which show trapezoid B is similar to trapezoid

What causes male fish to develop female eggs in their bodies?

What is a negative effect of urban sprawl as it relates to the concept of human-environment interaction?

How much interest would be earned on $20 at 5% for 3 years?

What is -$14(2.5). This has to be over 29 characters long but I need a quick answer to this because I’m too lazy to do it. :)