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miss Akunina [59]
3 years ago
8

2/2 - 7x-4 Simplify - 58+4 2x + 1 2-1 2x + 1 *+1 2-72

Mathematics
1 answer:
Pachacha [2.7K]3 years ago
5 0

Answer:

A or (2x+1)/(x-1)

Step-by-step explanation:

Let's simplify the top of the fraction first.

1. Simplify the numerator.

2x^2 -7x-4=(2x+1)(x-4)

2. Simplify the denominator.

x^2-5x+4=(x-4)(x-1)

Now we have:

((2x+1)(x-4))/((x-4)(x-1))

We see that there is an (x-4) both on the numerator and denominator.

We can remove (x-4) by division.

Doing that, we have:

(2x+1)/(x-1) or A

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The members of a drama club sold tickets to a school play.
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Answer:

Step-by-step explanation:

28*5 115 sub 115 from 800 then divide 685 by 5 then add 7 into that number 28 times

6 0
3 years ago
What is 3x195 I don't know!!
Dmitry_Shevchenko [17]
3x195=585 Hope this helped! :)
6 0
3 years ago
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What's the error? Jerry says that a cube with edges that measure 10 cm has a volume that is twice as much as a cube with sides t
disa [49]
The quick way to dispute something like this is to simply do the calculation and then create a ratio. 

Cube One (Large Cube)
The formula for a cube is V = e^3 
e = the measurement of an edge. In this case.
e = 10 cm
V = e^3
V = 10^3 = 10*10*10
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Cube 2 (Small Cube)
V = e^3
e = 5 cm
V = 5*5*5
V = 125 cm^3

Ratio
Large Cube / Small Cube = 1000 / 125 = 8/1.

The difference in size is 8 to 1 not 2 to 1.

Explanation
He's right if he sticks to one side. The ratio of one side of the large cube to the small one is 2 to 1. But once you put that into the formula for volume, three sides are multiplied together and that 2 shows up everytime you multiply the sides together. 

4 0
3 years ago
30 points if you aswer this<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7Dx%20%5Cfrac%7B3%7D%7B4%7D%20x%5Cfrac%7B4%7D%7B
Licemer1 [7]

Answer:

1/5

Step-by-step explanation:

1/3 x 3/4 x 4/5

1/3 x 3/4 = 3/12

3/12 x 4/5 = 12/60

12/60 = 1/5

8 0
2 years ago
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Please answer asap! *picture attached*
Nastasia [14]

f(x)= x+2

g(x)= x-4

(fg)(x) = (x+2)( x-4)

= x^2 - 4x +2x -8

= x^2 -2x -8

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3 years ago
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