Give two reasons why you think that three to five days seem to be popular lengths of engineering conferences. (Select all that apply.) 50% of the data values range from 3 to 5 days. The mean, median, and mode are within this range. Engineering is boring, so people do not want to spend many days at a conference. A conference that lasts 9 days is not effective.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i