Answer:
Complementary angles.
Step-by-step explanation:
Notice that
and
, by given.
, by sum of angles.
, by supplementary angles definition.

Which means,

Therefore,
, in other words, angles a and b are complementary by definition.
M=-1/2 because you do y1-y2 over x1-x2 and end up with 2/-4 but simplified is -1/2
Answer:
27
Step-by-step explanation:
3².2³/2² + 3².2²/2² = 27
Answer :
- Total number of people in the room = 18
- Number of people with red hair = 2
- Number of people not with red hair = 18 - 2 = 16
- Probability of picking a person who doesn't have red hair =

Probability = 16/18
Reduce the fraction with 2
Probability = 8/9