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Karo-lina-s [1.5K]
3 years ago
6

Solve for x 3x+3/x-4 = 3x+2/x+4

Mathematics
2 answers:
Lerok [7]3 years ago
5 0

Answer:

here you go! with step by step so you can do it next time

VashaNatasha [74]3 years ago
3 0

Answer:

-7/8

Step-by-step explanation:

<em>cross </em><em>multiply</em><em> </em><em>first </em><em>then </em><em>expand </em><em>the </em><em>equations </em><em>when </em><em>you </em><em>cross</em><em> multiply</em><em> </em><em>it </em><em>will </em><em>be</em>

<em>(</em><em>3</em><em>x</em><em>+</em><em>3</em><em>)</em><em>(</em><em>x+</em><em>4</em><em>)</em><em>=</em><em>(</em><em>3</em><em>x</em><em>+</em><em>2</em><em>)</em><em>(</em><em>x-1)</em>

<em>3</em><em>x</em><em>(</em><em>x+</em><em>4</em><em>)</em><em>+</em><em>3</em><em>(</em><em>x+</em><em>4</em><em>)</em><em>=</em><em>3</em><em>x</em><em>(</em><em>x-1)</em><em>+</em><em>2</em><em>(</em><em>x-1)</em>

<em>3</em><em>x</em><em>²</em><em>+</em><em>1</em><em>2</em><em>x</em><em>+</em><em>3</em><em>x</em><em>+</em><em>1</em><em>2</em><em>=</em><em>3</em><em>x</em><em>²</em><em>-</em><em>3</em><em>x</em><em>+</em><em>2</em><em>x</em><em>-</em><em>2</em>

<em>3</em><em>x</em><em>²</em><em>+</em><em>1</em><em>5</em><em>x</em><em>+</em><em>1</em><em>2</em><em>=</em><em>3</em><em>x</em><em>²</em><em>-</em><em>x</em><em>-</em><em>2</em>

<em>3</em><em>x</em><em>²</em><em>-</em><em>3</em><em>x</em><em>²</em><em>+</em><em>1</em><em>5</em><em>x</em><em>+</em><em>x=</em><em>-</em><em>2</em><em>-</em><em>1</em><em>2</em>

<em>1</em><em>6</em><em>x</em><em>/</em><em>1</em><em>6</em><em>=</em><em>-</em><em>1</em><em>4</em><em>/</em><em>1</em><em>6</em>

<em>x=</em><em>-</em><em>1</em><em>4</em><em>/</em><em>1</em><em>6</em>

<em>simplified</em><em> </em><em>to</em>

<em>-</em><em>7</em><em>/</em><em>8</em>

<em>I </em><em>hope</em><em> this</em><em> helps</em><em> </em>

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Find the area and perimeter.<br> The area is ... and the perimeter is ...
Schach [20]

Answer:

Area: 6a^2

Perimeter: 12a^2

Step-by-step explanation:

To find the area of a triangle, use the formula A=1/2 b*h. The base is 3a^2 and the height is 4a^2.

A= 1/2 (3a^2)(4a^2)

A = 1/2 (12a^4)

A = 6a^4

To find the perimeter of the triangle, add each of the sides of the triangle. The third side, the hypotenuse, can be found using Pythagorean theorem.

a^2+b^2=c^2\\(3a^2)^2+(4a^2)^2 = c^2\\(9a^4)+(16a^4)=c^2\\25a^4=c^2\\5a^2=c

Now add each of the sides: 3a^2 + 4a^2 +5a^2 = 12a^2

7 0
3 years ago
Write the following polynomial in standard<br> form: <br><br> 4x+3-4x2-10x3
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Answer:

− 10 x ^3 − 4 x ^2 + 4 x + 3

Step-by-step explanation:

5 0
3 years ago
Find the missing measure. Round to the nearest whole number (9mm, xmm, 4mm) find x
fredd [130]
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6 0
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Marcel is performing the first test on his company's new electric car. During the test, the electric car reaches a maximum speed
valentina_108 [34]

Answer:

C. The electric car is not moving at 0 seconds and 12 seconds.

Step-by-step explanation:

Given:

The table given is:

x   0   2    4     6      8      10      12  

y   0   45  72   81    72     45     0

From the above table, we observe that the car starts from rest and its speed increases from 0 to 6 seconds, the maximum speed being 81 mph.

After 6 seconds, the speed of the car goes on decreasing till it stops at time equal to 12 seconds.

So, the speed of the car at the start when x=0 is 0 mph as it is at rest at that time.

Also, when the time is x=12\ s, the car has come to a stop and thus its speed has reduced to 0 mph again. So, the car is not moving after 12 seconds.

From the above conclusion, we can say that only option C is correct.

The electric car is not moving at 0 seconds and 12 seconds.

3 0
3 years ago
Read 2 more answers
#54 Simplify and write the answers using positive exponents only.
kramer
Gg easy

remember
(x^m)/(x^n)=x^(m-n)
and
(x^m)^n=x^(mn)
and
(xyz)^m=(x^m)(y^m)(z^m)
and
(m/n)^a=(m^a)/(n^a)
and
x^-n=1/(x^n)

so
( \frac{6mn^{-2}}{3m^{-1}n^2} )^{-3}=
( \frac{6}{3} )^{-3}( \frac{m}{m^{-1}} )^{-3}( \frac{n^{-2}}{n^2} )^{-3}=
(2^{-3})((m^2)^{-3})((n^{-4})^{-3})=
( \frac{1}{2^3})(m^{-6})(n^{12})=
( \frac{1}{8} )( \frac{1}{m^6})(n^{12})=
\frac{n^{12}}{8m^6}

8 0
3 years ago
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