PLEASE HELP I GIVE A DECENT AMOUNT OF POINTS !!The circumference of the outside of a ring is 66 mm, and it has an outer diameter of 21 mm. If the circumference of the inside of the ring is 50 mm, what is the inner diameter of the ring? Plz show how you got your answer. Fake answers will be reported and shown to administators

Answer

I gotchu. The answer I got is 15.9235 or 16

Step-by-step explanation:

So the formula for circumference is Pi times diameter. (If I remember right) Now we can flip this equation to become Circumference divided by pi. This will give us our answer. I dunno if you have to round so here are my two answers.

16 (rounded) or  15.9235 :)

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:

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.