Answer: "...in descending order."
There you go.
10 +20i you just multiply and look what to write simply
Answer:
1/2=0.5
Step-by-step explanation:
¼=0.25
¾=0.75
Idk just need some points
Answer:
the expression is: ![^{15}P_3=\frac{15!}{(15-3)!}](https://tex.z-dn.net/?f=%5E%7B15%7DP_3%3D%5Cfrac%7B15%21%7D%7B%2815-3%29%21%7D)
and 2730 different ways are possible.
Step-by-step explanation:
In the given question we have to choose a president, vice
president, and secretary.
Permutations are used when order is important so, as in the given question order is required. We would use permutations
The formula used is:
where:
n=total number of objects
r=number of objects selected
In our case: n=15, r=3
Putting values and finding the answer:
![^nP_r\\^{15}P_3=\frac{15!}{(15-3)!} =2730 \ ways](https://tex.z-dn.net/?f=%5EnP_r%5C%5C%5E%7B15%7DP_3%3D%5Cfrac%7B15%21%7D%7B%2815-3%29%21%7D%20%3D2730%20%5C%20ways)
So, the expression is: ![^{15}P_3=\frac{15!}{(15-3)!}](https://tex.z-dn.net/?f=%5E%7B15%7DP_3%3D%5Cfrac%7B15%21%7D%7B%2815-3%29%21%7D)
and 2730 different ways are possible.