PL help me
For 1-10, determine whether the lines are parallel, perpendicular or neither.
One line passes through the points (-1, 4) and (2, 6); another line passes through the points (2, -3) and (8, 1).
One line passes through the points (4, -3) and (-8, 0); another line passes through the points (-1, -1) and (-2, 6).
One line passes through the points (-3, 14) and (1, -2); another line passes through the points (0, -3) and (-2, 5).
One line passes through the points (3, 3) and (-6, -3); another line passes through the points (2, -8) and (-6, 4).
Both lines pass through the point (2, 8); one line also passes through (3, 5), and the other line has slope 3.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0