Acircle has a circumference of 50.24 units. what is the radius of the circle?

r=8 (when pi is rounded to 3.14), and r = 50.24/(2*pi) when pi isn't rounded

Step-by-step explanation:

I'm guessing that they rounded pi to 3.14, so I will do the problem like that is the case...(but I will include an answer if they didn't)...the circufrence of a circle is 2*pi*r, so 2*pi*r=50.24. When you divide both sides by 3.14, you get 2r=16, meaning r=8. Without rounding, r would actually be 50.24/(2*pi)

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb