Women can be seated in 89 ways.
Let Sn be the number of possible seating arrangements with n women. Consider n≥3 and focus on the rightmost woman. If she goes back to her seat, then there are Sn−1 ways to seat the remaining n−1 women. If he is sitting in the penultimate seat, then the woman who was sitting there before must now sit in the rightmost seat.
This gives us Sn−2 ways to seat another n−2 woman, so we get the recursion Sn=Sn−1+Sn−2. Starting with S1=1 and S2=2 we can calculate S10=89.
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Answer:
The answer is 7
Step-by-step explanation:
Sorry I know it’s wrong I needed points
Answer:
f = € 0.20
k = € 2.20
Step-by-step explanation:
k + f = 2.40
k = 2 + f
(2 + f) + f = 2.40
2f = 2.40 - 2
2f = 0.40
f = € 0.20
k = 2 + 0.20 = € 2.20
Answer:
the volume of the inside of half grapefruit is ( 128/3) pi the volume of 1 of the 12 segments is (32/9) pi
Step-by-step explanation:
The volume of half a sphere (hemisphere) is (2/3) pi r^3
(2/3) 4^3 pi = (2/3)(64)pi = (128/3) pi -
The volume of one of the 12 segements is the answer divided by 12
128/36 pi =( (32/9) pi
