0 = 3x² +x - 6 Can you please factorise this
1 answer:
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Answer:
Step-by-step explanation:
For this case in order to select the one admiral, captain and commander, all different. We are assuming that the order in the selection no matter, so we can begin selecting an admiral then a captain and then a commander.
So we have 10C1 ways to select one admiral since we want just one
Now we have remaining 9 people and we have 9C1 ways to select a captain since we want a captain different from the admiral selected first
Now we have remaining 8 people and we have 8C1 ways to select a commander since we want a commander different from the captain selected secondly.
The term nCx (combinatory) is defined as:
And by properties
So then the number of possible way are:
If we select first the captain then the commander and finally the admiral we have tha same way of select
For all the possible selection orders always we will see that we have 720 to select.
Ok so for this problem you you divide 2/3 n by 2/3 and 7/8 by 2/3
you get
to divide fraction you flip the divider over to find the reciprocal
2/3 > 3/2 also you change the division symbol to the multiplication symbol
the equation now is
now you multiply to get 21/16
the answer is 1 5/16 after you simplify it
you get
to divide fraction you flip the divider over to find the reciprocal
2/3 > 3/2 also you change the division symbol to the multiplication symbol
the equation now is
now you multiply to get 21/16
the answer is 1 5/16 after you simplify it