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coldgirl [10]
3 years ago
14

I don’t understand this i need help

Mathematics
1 answer:
larisa86 [58]3 years ago
5 0
I think it’s BH but don’t get me wrong I don’t fully know
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Please also provide details steps to this answer. PLEASE HELP ME!
Ivahew [28]

Answer:

C

Step-by-step explanation:

First, to make things simpler, let's create a common denominator for every term. We can do this by multiplying (x+4) and (x+3) when the denominator has a (x+3) or (x+4), respectively. In other words:

(\frac{3}{x+3} -\frac{4}{x+4})\div (\frac{2x}{x+3}-\frac{x}{x+4})

(\frac{3(x+4)}{(x+3)(x+4)}-\frac{4(x+3)}{(x+4)(x+3)}) \div (\frac{2x(x+4)}{(x+3)(x+4)} -\frac{x(x+3)}{(x+4)(x+3)} )

Now that they all have a common denominator, we can combine them:

(\frac{3(x+4)-4(x+3)}{(x+3)(x+4)})\div (\frac{2x(x+4)-x(x+3)}{(x+3)(x+4)}  )

Now, divide them. Recall how to divide fractions. You "flip" the second term and change the division sign into a multiplication sign.

=(\frac{3(x+4)-4(x+3)}{(x+3)(x+4)})\cdot (\frac{(x+3)(x+4)}{2x(x+4)-x(x+3)} )

Notice the denominator of the first term and the numerator of the second; we can cancel them out.

=\frac{3(x+4)-4(x+3)}{2x(x+4)-x(x+3)}

Now, we just need to simplify.

=\frac{(3x+12)+(-4x-12)}{(2x^2+8x)+(-x^2-3x)} =\frac{-x}{x^2+5x} =\frac{-1}{x+5}=-\frac{1}{x+5}

8 0
3 years ago
Read 2 more answers
Which of the following angle pairs<br> are<br> NOT congruent?
Slav-nsk [51]

Answer:

<2 and <8

Step-by-step explanation:

8 0
3 years ago
NEED ASAP!!!!
irinina [24]

Answer:

Step-by-step explanation:

Does this help you??

8 0
3 years ago
Need help here plss
Ierofanga [76]

Two linear equations can have no solutions, exactly one solution or infinitely many solutions. There will be no solution if the lines are parallel on a graph. There will be exactly one solution if the lines intersect each other on a single point. And finally, there will be infinite solutions if the lines overlap each other perfectly.

A single line however has infinite ordered pair solutions as the line travels infinitely in both directions on the coordinate plane. For example, using the equation y=3x, for any real value of x, we will get a real value for y.

Linear inequalities with two variables have infinitely many solutions. We can use the inequality y>3x as an example. For any real value of x, we will get a real value for y.

I hope this helps!

6 0
3 years ago
What is the quotient
katovenus [111]

Answer:

-3

Step-by-step explanation:

if u need an explanation, reply and i'll give it to you. If not, have a good day :)

5 0
3 years ago
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