Answer:
x = 25
Step-by-step explanation:
Mathematically, one of the properties of a parallelogram is that consecutive angles of a parallelogram are supplementary
What this means is that they add up to be 180
A and B are supplementary, and this means that their addition equals 180
Thus, adding A and B equals 180
2x -10 + 5x + 15 = 180
7x + 5= 180
7x = 180-5
7x = 175
x = 175/7
x = 25
I'm pretty sure the slope is: - 4/11
Calculate the mean, median, and mode of the following set of data. round to the nearest tenth. 11, 9, 7, 6, 8, 2, 15, 1, 12, 15,
musickatia [10]
Median is the middle most number, so you order from least to greatest. :)
<span>11, 9, 7, 6, 8, 2, 15, 1, 12, 15, 14 which becomes: 1, 2, 6, 7, 8, 9, 11,12, 14,15,15.. So 1,2,6, 7, 8 can be grouped into the first upper section. 9 is the median since it's the middle because 11,12,14,15,15.
Mean is adding all values up and dividing by the total number you have. So you kind of did that, soo 100/11 = 9.1.
The mode is what is repeated the most, so, 15 appears the most (twice in total I believe). You already had the answers, but I hope this was enlightening ^^</span>