Step 2: m∠p − m∠o = 90 degrees (alternate interior angles) In this step, the student comes up with 90 degrees from nowhere. In addition, there are no alternate interior angles in the diagram because there are no parallel lines.
Answer:
20 possible arrangements
Step-by-step explanation:
A: Alice
B: Bob
C: Cindy
X: other student
All the possible arrangements are:
When Bob is in the first place
B A C X X
B A X C X
B A X X C
B X A C X
B X A X C
B X X A C
6 possible arrangements
When Bob is in the second place (notice that neither Alice nor Cindy can be before Bob)
X B A C X
X B A X C
X B X A C
3 possible arrangements
When Bob is in the third place
X X B A C
Only 1 possible arrangement.
Total arrangements when Bob is before Cindy: 10
If Cindy is before Bob the same situations are repeated, given another 10 arrangements. So, the total line up in which Alice is somewhere between Bob and Cindy are 20.
where are the numbers am not seeing them
Answer:
155
Step-by-step explanation:
you add 72 and 83 together
