AAA batteries are advertised to have a life of about 9 hours of use. With a certain level of confidence, you can advertise that the life is between 8-10 hours. In this example, 9 hours is the point estimate and what is the margin of error

okay wait before i answer, is this for your points on a graph?

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2