What is the value of f(-4) in the piecewise function f(x)= -x-5 for -5< = x < = -2; -x^2+1 for -2< =x< =2; (x-3)^2+2 for 2< =x< =4? if that makes any since

We first need to pick the correct piece to use. In this case, we will use f(x) = -x-5 because -5<=-4.

Then, we use direct substitution:
f(-4) = -(-4) - 5
f(-4) = -1

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent