A poll of a random sample of 1800 adults reported that respondents slept an average of 6.5 hours on weekdays and 7.1 hours on weekends, and that 20% of respondents got eight or more hours of sleep on weekdays, whereas 45% got eight or more hours of sleep on weekends. Complete parts a and b below. a. To compare the means or the percentages using inferential methods, should you treat the samples on weekdays and weekends as independent samples or as dependent samples

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?

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

If the tip varies directly with the number of guest which equation represents between the tip, t, and the number of guest, g?