Easy
the radius is the distance from the center to a point on the circle
we are given
center=(7,1)
a point=(8,7)
find the distance
distance formula
D=

so the distance between point and center is radius
D=

D=

D=

D=√37 units
radius is √37 units
Irrational
Irrational
Rational
Rational
Irrational
Rational
Irrational
Irrational
Sorry if anything is wrong, I went off of memory! :)
Answer:
what do you have to do this?
Step-by-step explanation:
what grade and type of math is this?
Answer:
-1.375
Step-by-step explanation:
163-x=-52
first subtract 163 and you get -215
now it looks like -x=-215
then the negative signs cancel out and its now x=215