Using the permutation formula, as the order is important, it is found that the officers can be chosen in 6840 ways.
Each "position" is a different role(president, vice president and secretary), hence the order is important.
<h3>What is the permutation formula?</h3>
The number of possible permutations of x elements from a set of n elements is given by:
In this problem, 3 people will be chosen from a set of 20, hence:
The officers can be chosen in 6840 ways.
More can be learned about the permutation formula at brainly.com/question/25925367
Answer:
i think your question was suppose to have bracket
as for me I included brackets in my calculations
Step-by-step explanation:
(9x+5)(14x-4)
9x(14x-4)+5(14x-4)
126x²-36x+70x-20
126x²+34x-20
trial
Answer:
26.32 FIRST brainliest Hope this helps you :)
Step-by-step explanation:
Answer:
The average velocity for the skier is exactly 60 meters per second.
Step-by-step explanation:
Divide the distance which is 750 meters and 12.5 seconds and you get 60 meters per second. Velocity formula --> 750 meters / 12.5 seconds = 60 m/seconds.
Plz mark brainliest if u r cool
The rate that train 1 is going plus the distance:
35x+52.5
The rate that train 2 is going plus the distance:
56x+0
X=number of hours
Solve for X to find where the 2 trains have gone the same distance:
35x+52.5=56x
52.5=21x
2.5=x
The express train will overtake the local train 2 and a half hours after it leaves