- linear pairs are supplementary, meaning they add up to 180°
5x + 9 + 3x + 11 = 180
8x + 20 = 180
8x = 160
x = 20
- now plug in.
angle 1: 5(20) + 9 = 100 + 9 = 109°
angle 2: 3(20) + 11 = 60 + 11 = 71°
Answer:
40 or 48 if it has to be greater than 40.2
Step-by-step explanation:
40- .2=40
40/8=5
~or~
40.2+7.8=48
48/8=6
Answer:
It's not much harder.
Calculus just requires that you put in a lot of work doing practice problems, which is something a lot of people aren't willing to do. And, it just involves a lot of memorization of formulas.
An obtuse triangle. I think.
