-10 because you lost twice more than you won.
If i am correct than i say the answer is B<span />
B - 2 ≥ - 1
Add 2 to both sides:
B ≥ -1 + 2
B ≥ 1
Answer: B ≥ 1
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.
Answer:
5
Step-by-step explanation:
-8x + 25 = -15
-25 = -40 then
-40 divide -8 to get 5