Define a relation r on r x r by (a, b)r(c, d) if and only if ad = bc for any (a, b), (c, d) ? r x r. (b) describe, in set-builder notation, the equivalence class [(1, 1)] under this relation r on r x r.

mia khalifa

step-by-step explanation:

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.

yes they are the same

your answer is b.

1,333 cubic feet  

and i know this one is right.