Answer:
Ok, so we can express the boys as another letter. just express them as the letter B for boys.
Step-by-step explanation:
I really don't know why.
Answer:
The lower bound of 19.4 is 19.35
Answer:
Step-by-step explanation:
1. Replace F(x) with y.
2. Interchange x and y in y = 2x + 1: x = 2y + 1
3. Solve this result for y: 2y = x - 1, or y = (x - 1)/2
4. Replace y with:
-1
F (x):
-1 x - 1
F (x) = -----------
2
Answer:

As a decimal = 0.05 (nearest hundredth)
Step-by-step explanation:

First pick:

As the case is NOT replaced, second pick:

As the case is NOT replaced, third pick:

Therefore,

Answer as a decimal = 0.05 (nearest hundredth)