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kompoz [17]
3 years ago
5

Factor this expression completely and then place the factors in the proper location on the grid. Note:

Mathematics
1 answer:
Eddi Din [679]3 years ago
6 0
First we are going to group the terms that contains the common factor m in one parenthesis, and the other ones in another parenthesis:
mn-4m-5n+20
(mn-4m)-(5n+20)
Notice that our the terms in our first parenthesis have a common factor m, and the terms in our second one have the common factor 5. Lets factor those out:
m(n-4)-5(n-4)
Now we have a common factor (n-4) in both terms, so we can factor those out as well:
(n-4)(m-5)

We can conclude that the completely factored expression ordered alphabetically is (m-5)(n-4).
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In table 2, at this rate how many books can you buy with 5$
Ad libitum [116K]

Answer:

3 books

Step-by-step explanation:

6/10=0.6

0.6*5=3

so 3 books

3 0
3 years ago
The newly elected president needs to decide the remaining 8 spots available in the cabinet he/she is appointing. If there are 14
Elanso [62]

Answer:

The members of the cabinet can be appointed in 121,080,960 different ways.

Step-by-step explanation:

The rank is important(matters), which means that the order in which the candidates are chosen is important. That is, if we exchange the position of two candidates, it is a new outcome. So we use the permutations formula to solve this quesiton.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

If there are 14 eligible candidates for these positions (where rank matters), how many different ways can the members of the cabinet be appointed?

Permutations of 8 from a set of 14. So

P_{(14,8)} = \frac{14!}{(14-8)!} = 121,080,960

The members of the cabinet can be appointed in 121,080,960 different ways.

3 0
3 years ago
Hey can you please help! posted picture of question
frosja888 [35]
The solution of the system can be x - 3y = 4 only if both the equations can be simplified to x - 3y = 4.

This will mean that both the equations will result in the same line which is x - 3y = 4 and thus have infinitely many solutions.

Second equation is:

Qx - 6y = 8 
Taking 2 common we get:

(Q/2)x - 3y = 4

Comparing this equation to x- 3y = 4, we can say that 

Q/2 = 1
So,
Q = 2

Therefore, the second equation will be:

2x - 6y = 8
5 0
4 years ago
PLZ ANSWER THESE U DONT HAVE TO PUT A EXPLANATION
Natasha2012 [34]

Answer:

I believe it is the last choice.

Step-by-step explanation:

3 0
3 years ago
Sarah buys 2 candy bars for $1.45. how much would one candy bar cost
sattari [20]
2 = $1.45
1 = $0.725

anything to ask please pm me
4 0
4 years ago
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