Water is 2 parts hydrogen and 1 part oxygen (H2O). For one molecule of water, each atom
has the atomic mass unit, u,
shown. What percent of
the mass of a water
molecule is hyd

its c or d   take a lucky guess my dude

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,

answer: y=0 if that is what u r looking for