ANSWER QUESTIONS QUICKLY PLZ

See below.

Step-by-step explanation:

Since the two triangles are similar, this means that their corresponding sides are proportional. In other words:

Part A:

We already know PQ, RP, XY, and YZ.

To find XZ, we can use the first and third proportions:

Cross multiply:

Part B:

The same thing as Part A, but with the first and second proportions:

b) the dogs need to shift their focus to human scent.

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: