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Sergio039 [100]
4 years ago
14

Select the factors of xy − 4x + 2y − 8.

Mathematics
2 answers:
lisabon 2012 [21]4 years ago
5 0
We need to factor by grouping. Group xy with -4x and 2y with -8 and factor each group.

(xy-4x)+(2y-8)
x(y-4)+2(y-4)
b. (x+2)(y-4)

Hope that helps.
KonstantinChe [14]4 years ago
5 0
First what you must do is see if there is a greatest common factor. As you will see in this particular problem, there is not, so therefore you must factor by grouping.

(x+2)(y-4) is definitely the correct answer because if you really think about it,     x*y=xy, x*-4=-4x, 2*y=2y, and 2*-4=-8!

So, I definitely believe that the answer is unmistakably (x+2)(y-4)!
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Solve<br>(10) x 2 - (-7)^2​
erik [133]

Answer:

-39

Step-by-step explanation:

20-49

=49-20 but negative

=-39

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4 years ago
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elena-14-01-66 [18.8K]

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Step-by-step explanation:

3 0
3 years ago
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Given this system of equations with three unknown variables, what is the value of C?
mina [271]

This is basically a system of 3 linear equations with variables x, y and c.


x+y = 6...................................(1)

5x/3 + y = c .........................(2)

2y = c-4x .............................(3)


(2)-(1)

5x/3-x +y-y = c-6 => 2x/3 = c-6 => x = (3/2)(c-6)=3c/2-9 ..............(4)

(3) - 2(2)

2y-2y - 10x/3 = c -4x -2c

=> 2x/3 = -c

=> x = -(3/2)c.............................................................................................(5)


Finally, equate (4) & (5) to get

3c/2-9 = -3c/2

=>

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=> c=3

3 0
3 years ago
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I. The airport branch of a car rental company maintains a fleet of 50 SUVs. The interarrival time between requests for an SUV is
rosijanka [135]

Answer:

20

Step-by-step explanation:

For the computation of the average number of SUVs parked in the company's lot first it is required to compute the utilization which is shown below:-

Utilization = \frac{p}{a\times m}

where p indicates activity time which is equal to 3 days = 72 hours

a indicates an interarrival time which is equal to 2.4

m indicates the number of servers which is equal to 50

now we will put the values into the above formula

Utilization = \frac{72}{2.4\times 50}

After solving the above equation we will get

u = 0.6

or

60%

now, the average cars parked in the company's lot is

Average\ cars = 50 - 60\%\times 50

= 50 - 30

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4 0
3 years ago
The owner of a new restaurant wants to have seating for more than 75 people. There is currently a private chef’s table that seat
IRINA_888 [86]

Answer:

c) The required representation of the given situation is 4  m + 3  > 75

Step-by-step explanation:

Let us assume, the owner plans to have m tables.

Each table can seat 4 people.

⇒The number of people seated in m tables = m times 4  = 4 m

Also, the additional number of people seated ta chef's table = 3

So, Total seated people in the restaurant

= People seated at m tables + People seated at chef's  table

= 4  m + 3

Now, the seating arrangement  is for more than 75 people.

⇒  4  m + 3  > 75

Hence, the required representation of the given situation is 4  m + 3  > 75

4 0
4 years ago
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