Answer:
C(5,-9) and r=8.
Step-by-step explanation:
C(p, q) - center
r=radius
k:x^2 +y^2 +dx+ey+f=0
x^2+y^2 - 10x+18y+42=0
d=-10, e=18, f=42
p=-d/2=-(-10)/2=10/2=5
q=-e/2=-18/2=-9
r^2 =p^2+q^2-f
r^2 =5^2 +(-9)^2 - 42
r^2=25+81-42
r^2 =106-42
r^2 =64
r=sqrt(64)
r=8
C(p,q)=C(5,-9) r=8
Well what is the problem ?
Answer:
m+6n
Step-by-step explanation:
Let number of men who attended last year=m
Let number of women who attended last year=n
This year, we expect Six times the amount of women attendance last year =6 X n = 6n
The same number of men, m will be expected this year
Therefore, Number of Expected Attendees
= Number of Men + (Six Times the Number of Women)
=m+6n
We can expect (m+6n) people to be in attendance this year.
