Find the center and radius of the sphere x2+2x+y2−4y+z2−8z=60

Question

07-09-2017
Mathematics

contestada

Find the center and radius of the sphere x2+2x+y2−4y+z2−8z=60

Respuesta :

Otras preguntas

the cost of making article is divided between material, labour and overhead in ratio 3:4:5 if cost of material is 33.60 then cost of article is

how do you solve 3x-2 divided by 8=x/4-1 ?the answer is x= -6but how do you solve it?

Simply the expression : z2-z(z+3)+3z

What conditions must be present to enable a material to dissolve in another material?

Please can anyone help with this one? I 3y - 4 I = I 3y + 8 I

how do you simplify x-2(x+3y)-(2x+3y)-4(x+y)can i have an explanation too!!

Given m = 4 and n = 6, find the ratio of n to m

True or false??1. volcanoes can carve landforms, such as lakes and valleys, in a matter of hours.2. The Hawaiian Islands were formed by volcanoes located at a p

what are some organic compounds? is grass an organic compund?

ghanami ghanami · Answer 1 · 2017-09-09T20:06:48+02:00

ghanami ghanami

09-09-2017

hello :
x²+2x+y²−4y+z²−8z=60
(x²+2x) + (y² - 4y) +(z² - 8z) = 60
(x²+2x+1) -1 +(y² - 4y +4 ) - 4 +( z² - 8z+16) -16 = 60
(x+1)² +(y-2)² +(z - 4)² = 9²
the center is the point : A(-1, 2 , 4)
and radius : 9

Answer Link