carol had a birthday party at a local pizza restaurant the bill came 54.80 not including tip to be 15% how much whould that add
1 answer:
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Firstly , we will locate centres and radius in the figures
(a)
We can see that
centre=(h,k)=(0,0)
radius=r=5
now, we can use standard equation of circle
we can plug values
we get
(b)
We can see that
centre=(h,k)=(5,4)
radius=r=3
now, we can use standard equation of circle
we can plug values
we get
(c)
We can see that
centre=(h,k)=(4,3)
radius=r=5
now, we can use standard equation of circle
we can plug values
we get
