Answer:
the 3rd one is yes the rest are no
Step-by-step explanation:
Using the permutation formula, it is found that the people can be chosen for the roles in 6840 ways.
The order in which the people are chosen is important, as there are different roles, hence the <em>permutation formula</em> is used.
<h3>What is the permutation formula?</h3>
The number of possible permutations of <u>x elements from a set of n elements</u> is given by:
In this problem, 3 people will be chosen from a set of 20 people, hence the number of ways is given by:
More can be learned about the permutation formula at brainly.com/question/25925367
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Answer:
TRY 416in²
Step-by-step explanation:
front:
8×17=136÷2=68
same for the back
back = 68
side 1=
7×15=105
side 2=
8×7=56
bottom=
17×7=119
68+68+105+56+119=416
Answer:
<u><em>noun</em></u>
1. a length of cord, rope, wire, or other material serving a particular purpose.
2. a long, narrow mark or band.
<u><em>verb</em></u>
1. stand or be positioned at intervals along.
2. mark or cover with lines.
Answer:
We just add numerators and rewrite denominator.
Adding unlike dominators:
We need to find the same denominators. You need to find the least common multiple (LCM) of the two denominators.
Step-by-step explanation:
You mean unlike denominators and like denominators.
Adding like dominators: We just add numerators and rewrite denominator :
Example :
Adding unlike dominators:
We need to find the same denominators. You need to find the least common multiple (LCM) of the two denominators.
For example :
LCM for 5 and 4 is 20 : Now, divide by 5 and multiply by 1 for first fraction. 20 divide by 4 and multiply by 3 :