3. Find the measure (in radians) of a central angle of a sector of area 16 in squared a circle of radius 3 inches. 

α = 3.5 rad

Step-by-step explanation:

α = 2*Area/r^2

α = 2*16 in^2/(3in)^2

α = 3.5555 radians

two? xd

step-by-step explanation:

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.