Answer:
<em><u>17: 480</u></em>
(We first arrange all of the candidates except b in a line. This can be done in 5! ways. We now add b to the line. Since we now want to count the arrangements where b is positioned next to a, there are two possibilities for the position of b. (Either left of a or right of a).
There are thus 2⋅5! ways of arranging the candidates so that a and b are next to each other, and hence 6!−2⋅5!=4⋅5!=480 ways of arranging the candidates so that a and b are not next to each other)
<u><em>18</em><em>:</em></u><em><u> </u></em>i don't know sorry
Answer:
A: Independent
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
it shows the color and every outcome for the coin flip
2/3 of the cake would be 2/3 of 15 slices, or 10 slices.
This leaves (15 slices - 10 slices), or 5 slices.
Answer:
20 floor
Step-by-step explanation:
16 - 11 = 5 5 + 15 = 20
The elevator is on the 20th floor
