how can you tell just by looking at two given equations whether they must have a point of intersection?

the two variables in the equations will have the same value.

Step-by-step explanation:

So for example, if we have two lines that have the following equations (in slope-intercept form):. y = 3x-3. y = 2.3x+4. At the point of intersection, they will both have the same value.

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

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation: