Classify the following triangle whose side lengths are 8,
5 and 4.

Scalene triangle

Step-by-step explanation:

By its definition, a scalene triangle is a triangle where none of the sides are congruent, all of the sides are of different lengths. The given triangle with side lengths of (8), (5), and (4) follows this criterion, thus it is a scalene triangle.

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