Which property justifies his step in simplifying an expression?
5x2+x2+4=(5x2+x2)+2x+4
-the associative property
-the inverse property
-the commutative property
-the distributive property

i dont know sorry

step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,