The area of a circle is 4π square kilometers. What is the radius? Write your answer in simplest form.

2 km

Step-by-step explanation:

4π = π × r²

r² = 4

r = 2

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

you need more information to answer this question

step-by-step explanation: