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soldier1979 [14.2K]
2 years ago
12

Solve this rational equation

D%7Bx%20%2B%204%7D%20%2B%202%20%20" id="TexFormula1" title=" \frac{x}{x + 4} = \frac{4}{x + 4} + 2 " alt=" \frac{x}{x + 4} = \frac{4}{x + 4} + 2 " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
sergey [27]2 years ago
6 0

Answer:

x =  - 12

C.E.: x <em>=/=</em> -4

Step-by-step explanation:

\frac{x}{x + 4}  =  \frac{4}{x + 4}  + 2 \\  \frac{x}{x + 4}  =  \frac{4 + 2x + 8}{x + 4}  \\ x = 4 + 2x + 8 \\  - x = 12 \\ x =  - 12

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siniylev [52]
The answer to your question is yes


4 0
3 years ago
Someone help with this
timama [110]

Answer:

18% decrease

Step-by-step explanation:

  1. 7,500 - 6,125 = $1,375
  2. Set up a proportion: \frac{1375}{7500} = \frac{x}{100}  
  3. Cross multiply, then divide: 1375 × 100 = 137500, 137500 ÷ 7500 = 18 1/3
  4. 18 1/3% rounded = 18%
  5. It went down, so it is a decrease

I hope this helps!

7 0
3 years ago
Read 2 more answers
Find x<br> A. 22√2<br> B. 22<br> C. 11√3/3<br> D. 11√3
mel-nik [20]

Answer

22\sqrt{2}

Step-by-step explanation:

First we gave a name to the side that is common for both triangles, can be Y for example.

Using trigonometric functions we can make a relationship between the two angles that we have and the magnitud of the side.

sin(45)=\frac{11}{Y}  \\ , Because sin(x)= op/hip

cos(60)=\frac{Y}{x} , Because con(x)=ad/hip

Having this equations, we can solve the system and find x

Y=\frac{11}{sin(45)} \\Y=cos(60)*x

we equal Y and solve

\frac{11}{sin(45)}=cos(60)*x\\ x=\frac{11}{sin(45)*cos(60)} \\x=\frac{11}{\frac{\sqrt{2} }{2} *\frac{1}{2} } \\x=\frac{11}{\frac{\sqrt{2} }{4} } \\x=\frac{44}{\sqrt{2} }\\

Then we rationalize

x=22\sqrt{2}

Hope you like it!

7 0
3 years ago
Read 2 more answers
3/8d+3/4 factor out coefficient
Orlov [11]
Coefficient is a number next to the variable so the coefficient of this expression is 3/8
5 0
3 years ago
Select the correct answer.
Anit [1.1K]

Answer:

  D.  I and IV

Step-by-step explanation:

"Discrete" means the quantities can only assume specific (usually integer) values. It is contrasted with "continuous," which describes quantities that can assume any value in some range, not necessarily an integer value.*

_____

* quantum physics is ignored in this discussion.

4 0
2 years ago
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