gabflips7267
18.03.2021 •
Mathematics
Caroline is going to invest $5,500 and leave it in an account for 10 years. Assuming
the interest is compounded continuously, what interest rate, to the nearest tenth of a
percent, would be required in order for Caroline to end up with $10,100?
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Ответ:
Answer is in the file below
cutt.ly/tz3yDpb
Ответ:
1) 1320 2)278256 3)330 4) 455 5)56 6)336 7) 990 8) 2730
Step-by-step explanation:
Solution:
1) Democrats = 15, Republicans = 11, Independents= 8
Total = 15+ 11+ 8 =34
Number of 3 persons committee = 15nCr 1 * 11nCr1 * 8nCr1
nCr =combination
Number of 3 persons committee that can be made by choosing any republican or democrat or independent = 15 * 11* 8 =1320
2)Total number of possible 5 person subcommittes from any 34 people = 34nCr5 = 34!/(29! * 5!)
=278256
3) Number of ways republicans choose subcomittee of 4 members = 11nCr4
= 11!/(7! * 4!)=330 ways
4) Number of ways democrats choose subcomittee of 3 members = 15nCr3
= 15!/ (12! *3!)=455 ways
5) Number of waysindependents choose subcomittee of 3 members = 8nCr3
= 8!/(5! * 3!)= 56 ways
6) Number of ways independents choose chairperson, vice chairperson and secretary:
As one picks each post the number of person decreases
= (Chairperson)* (vice chairperson) * (secretary) = 8nCr1 * 7nCr1 * 6nCr1
=336 ways
7) Number of ways republicans can choose chairperson, vice chairperson and secretary
As one picks each post the number of person decreases
= (Chairperson)* (vice chairperson) * (secretary) = 11nCr1 * 10nCr1 * 9nCr1
= 990ways
8) Number of ways Democrats can choose chairperson, vice chairperson and secretary
As one picks each post the number of person decreases
= (Chairperson)* (vice chairperson) * (secretary) = 15nCr1 * 14nCr1 * 13nCr1
= 2730 ways