With help of permutations and combinations we can calculate the probability of some event to happen,if the event is composed from several other events (when is a list)
If the order of the events doesn't matter then we have a combination, if the order do matter then we have a permutation. We can say that a permutation is an ordered combination.
The number of permutations of n objects taken r at a time is determined by the following formula:P(n,r)=n!(n-r)!
<span>The number of combinations of n objects taken r at a time is determined by the following formula: C(n,r)=n!/(n-r)!r!</span>
Answer:
x=3 y=2
Step-by-step explanation:
please refer to the picture I sent
Answer:
13.00
Step-by-step explanation:
Answer:solve for y
y -1/2x ≥ 4
y ≥ 1/2x + 4
The y intercept is 4, and the slope is positive, so the only graph with that conditions is B.
Step-by-step explanation:
Answer:
-18
Step-by-step explanation: