Whats the square root of 4?

2

Step-by-step explanation: The square root of 4 is 2.

4 is a perfect square which means that a whole number which in this case is 2 can be multiplied by itself to give us 4.

It's also on our perfect square list which I have attached below.

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

its 50 miles away from the starting point