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.
Since its every two days the equation would be
3(1.25+3.5)= how many hours the scientist will spend observing the dolphins and sea lions
that equals 14.25 so thats your answer
A number is less than 4 units from 0
-4<x<4
The area of the circle is equal to the area of the polygon
The amount is $337.08 and the interest is $37.08.
Hope this Helps
