The circumference of a circle is 8cm. What is the diameter of a circle?

A. 8π cm
B. 4π cm
C. 8π‾‾√ cm
D. 4π‾‾√ cm

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

answer for #1 is c

answer for #2 is d

can i get brainliest

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

what are the statments

step-by-step explanation: