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NARA [144]
3 years ago
14

Simplify the following: 2x3 - 2x2 - 4x / (over)

Mathematics
1 answer:
Marina86 [1]3 years ago
8 0

\frac{2x^3-2x^2-4x}{3x^3-12x}

\frac{2x.(x^2-x-2)}{3x.(x^2-4}

\frac{2}{3}.\frac{x^2-x-2}{x^2-4}

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Meteorologists recorded a temperature change from 72˚F to 28˚F in one day. Write an equation that represents how many degrees th
marysya [2.9K]

Answer:

72-x=28 or 72-28=x

Step-by-step explanation:

5 0
3 years ago
The length of a rectangle is three times its width. if the area of the rectangle is 75 in2, find its perimeter.
UkoKoshka [18]

Answer:

  40 in

Step-by-step explanation:

For a width of w, the length is 3w and the area and perimeter are ...

  A = LW = (3w)(w) = 3w^2

  P = 2(L+W) = 2(3w +w) = 8w

We are given the area, so we can find w to be ...

  75 in^2 = 3w^2

  25 in^2 = w^2 . . . . . divide by 3

  5 in = w . . . . . . . . . square root

Then the perimeter is ...

  P = 8w = 8(5 in) = 40 in

7 0
3 years ago
How many solutions does the equation -3(2x+5)=-15 have?
Mamont248 [21]

Answer:

Step-by-step explanation:

-3(2x+5)=-15

-6x-15= -15

-6x=0

No solutions

4 0
2 years ago
Find the value of X. Then find the measure of each labeled angle.
wariber [46]
Both angles WILL have the same measure.

So,

3x-10= x+40 (you have to set the equations equal to one another)


Now, add 10 to both sides.

3x=x+50

Subtract x on both sides.

2x=50

Divide both sides by 2.

x=25

Now, plug in x.

(25 +40)= 65

(3(25)-10)= 65

x equals 25 and both angles are equal to 65. Or "B".

I hope this helps!
~cupcake
5 0
3 years ago
What is the horizontal change between two points on a line
Helga [31]
The horizontal change is called the run and the vertical is rise. so for example if one point to the other rises by 4 and runs by 5, the slope is 4/5. slope is
rise / run
4 0
3 years ago
Read 2 more answers
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