Answer:
1. 180° ∑triangle angles=180°
2. 2x
3. 52°
Answer:
1/35
Step-by-step explanation:
1/5 divided by 7 is the same as 1/5 x 1/7
=> 1/5 x 1/7 = 1/35
Or using the picture it would be :-
1/5 divided by 7/1
We want to simplify √(-48).
Note that
i² = -1 by definition.
Therefore

Answer: c.