Most of the new but cheaper sailboats I see that can be used out at sea usually cost 40-50k, but a pre-owned one would probably be 20-25k depending on the quality of the boat. Plus the price would depend on where you live.
(using a calculator), do $23,500 times by (0.75)^4 (to the power of)
2700 (1-4%) 5. population by 2020 would be 2201
Right triangle = Pythagoras theorem.
a^2+b^2=c^2
there's already c and b so
10^2-8^2=a^2
100-64= 36
a^2=36
square root both sides
to get 6.
Answer: The director can choose two singers from the 20 singers in 190 different ways.
Step-by-step explanation:
Given : The total number pf singers auditioning for the musical= 20
The number of singers looking director for = 2
We use combinations here because order of selecting singers does not matter.
(If order matters then we use permutations.)
The number of combinations of to select r things of n things = ![^nC_r=\dfrac{n!}{r!(n-r)!}](https://tex.z-dn.net/?f=%5EnC_r%3D%5Cdfrac%7Bn%21%7D%7Br%21%28n-r%29%21%7D)
So the number of ways can the director choose two singers from the 20 singers=![^{20}C_2=\dfrac{20!}{2!(20-2)!}](https://tex.z-dn.net/?f=%5E%7B20%7DC_2%3D%5Cdfrac%7B20%21%7D%7B2%21%2820-2%29%21%7D)
![=\dfrac{20\times19\times18!}{2\times18!}=190](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B20%5Ctimes19%5Ctimes18%21%7D%7B2%5Ctimes18%21%7D%3D190)
Therefore , the director can choose two singers from the 20 singers in 190 different ways.