Answer:
-a + b
Step-by-step explanation:
Answer:
P(X = 12) = 0.0064.
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this problem we have that:

We want P(X = 12). So


P(X = 12) = 0.0064.
Answer:
80 cm
Step-by-step explanation:
(5 x 8) x 2
40 x 2
80 cm
P= L+W
P= Perimeter, L= Length and W=Width
Length + Width = Perimeter
So, then P(22) - W(5) = L(17)
Hope that helps.
Answer:
15
Step-by-step explanation:
3x+2y=33
2x+3y=42
Add the two equations together:
5x+5y=75
Divide both sides by 5:
x+y=15
Hope this helps!