There are 
ways to select 3 from 9.
There are 
ways to select 3 men from 5 men and 
ways to select 3 women from 4 women.
If all three selected are men, then no woman was selected, and we have
ways we can do that.
1)
![P(All -3 -are -men)=[tex]\frac{5C_3 \times 4C_0}{9C_3}=\frac{5}{42}](https://tex.z-dn.net/?f=P%28All%20-3%20-are%20-men%29%3D%5Btex%5D%5Cfrac%7B5C_3%20%5Ctimes%204C_0%7D%7B9C_3%7D%3D%5Cfrac%7B5%7D%7B42%7D)
2) If all 3 are women then no man was selected, and we have
ways we can do that.
3) If 2 men and 1 woman were selected, the we have 
ways we can do that.
4) If 2 women and 1 man is selected, then we have 
if you divide 5 by 8, you will get .625, so the answer is 62.5%
Answer:
b(x) = -2X² + 19X + 114
Step-by-step explanation:
b(x) = total revenue generated per day
total revenue formula ⇒ b(x) = price x quantity
price = $3 current price + 0.5X price increase = 3 + 0.5X
quantity = 38 current quantity sold - 4 books per X = 38 - 4X
b(x) = (3 + 0.5X) · (38 - 4X)
b(x) = 114 -12X + 19X - 2X²
b(x) = -2X² + 19X + 114
Answer:
exact form: -17/8
decimal form: -2.125
mixed number form: -2 1/8
Step-by-step explanation:
cmon this is freaking addition
