By their mutual exclusivity,
For the last probability, first distribute the intersection:
Recall that for two event ,
so that
Answer: 21 , 72 , 75
Step-by-step explanation:
The one that could represent the three sides of a right angle triangle must obey Pythagoras theorem , that is
a = side of right triangle
b = side of right triangle
c = hypotenuse
Let's check the sides one after the other
1.
this means that
this could represent the three sides of a right triangle
2.
3.
4.
Therefore , the only combination that could represent the three sides of a right triangle will be 21 , 72 , 75
U can add 6 on each side. So it’s y/10 = 10 then you can multiply by 10 by each side so y=100
-2.45 will be the write answer
Answer: 90 degrees
Step-by-step explanation: Each of these angles are at 90 degrees since there is a square box at each of their second points.