Answer:they are supplementary ,adjacent and linear
Step-by-step explanation:supplementary because the sum of the 2 anglez is 180. Adjacent because they habe a common vertex. Linear beacause they are adjacent and sum is 180
Obtuse angle
Which is a angle between 90 and 180 degrees. Add all of them up you’ll get 105 which is in between 90 and 180.
Answer:
perimeter: 31 units
Step-by-step explanation:
(1/8)x + 2 = 9 yields a solution of 56.
(1/9)x – 8 = 7 and (1/9)x – 7 = 8 both have a solution of 135.
Answer:
3.4
Decrease ; 3.375
Step-by-step explanation:
Mean = Σfx / Σf
Σfx = (1 * 2) + (2 * 2) + (3 * 3) + (4 * 9) = 51
Σf = 1 + 2 + 3 + 9 = 15
Mean = 51 / 15 = 3.4
If 1 more dot is added to the 3rd column:
Σfx = (1 * 2) + (2 * 2) + (3 * 4) + (4 * 9) = 54
Σf = 1 + 2 + 4 + 9 = 16
Mean = 54 / 16 = 3.375