Supplementary angles will always add up to 180. If you had a straight line, and you drew another line across that line, the two angles on either side of that line would add up to 180 because a flat line is equal to 180 degrees.
Answer:
n = ⅜
Step-by-step explanation:
Tomorrow night at ten because 48 hours is two days. So two days from last night at ten.
Answer: a) 6700 b) 2233
Step-by-step explanation:
a)
![(-67)*(-99)+(-67)*(-1)=\\(-67)*((-99)+(-1))=\\(-67)*(-100)=\\6700](https://tex.z-dn.net/?f=%28-67%29%2A%28-99%29%2B%28-67%29%2A%28-1%29%3D%5C%5C%28-67%29%2A%28%28-99%29%2B%28-1%29%29%3D%5C%5C%28-67%29%2A%28-100%29%3D%5C%5C6700)
b)
![29*(80-3)=\\(30-1)*(80-3)=\\30*80+(-1)*80+(-3)*30+(-1)*(-3)=\\2400-80-90+3=\\2403-170=\\2233](https://tex.z-dn.net/?f=29%2A%2880-3%29%3D%5C%5C%2830-1%29%2A%2880-3%29%3D%5C%5C30%2A80%2B%28-1%29%2A80%2B%28-3%29%2A30%2B%28-1%29%2A%28-3%29%3D%5C%5C2400-80-90%2B3%3D%5C%5C2403-170%3D%5C%5C2233)