D = {xl x is a whole number) E = {xl x is a perfect square < 36)
F= (x1 x is an even number between 20 and 30)
The expression Dn E is {1, 4, 9, 16).
The expression Dn Fis (12, 14, 16, 18).
DU (En F) is (all whole numbers).
(En F) is the empty set.
The expression D n (EU F) is 25

faster, im not sure why but i know it is faster

try soting them out first

step-by-step explanation:

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event

most likely linear (proportionate)

step-by-step explanation:

as time increases heart rate increases