Seudónimo Seudónimo

23-04-2018
Mathematics

contestada

I have 2 questions. Please help me with them. Thank you.

I have 2 questions Please help me with them Thank you class=

Respuesta :

choixongdong choixongdong

23-04-2018

(x+8)^(2) + (y+9)^(2) = 169
(x+8)^(2) + (y+9)^(2) = 13^2

h = -8
k = -9
r = 13

answer
A. center (-8,-9)
radius = 13

--------------

(x-7)^2 + y^2 = 225
(x-7)^2 + y^2 = 15^2

h = 7
k = 0
r = 15

answer
B. center (7,0)
radius = 15

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