Iam totally confused on what i am supposed to do and i am stuck.

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,

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !