In a factory of 520 workers. 320 workers work during day shift only. if 7 workers work both day and night shift. how many workers work only at night shift?

answer:

c) the x-coordinate of the center of the circle increases by 3

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.