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3 years ago

Please help !! i’m struggling

Mathematics

1 answer:

yaroslaw [1]3 years ago

3 0

¿Aún necesitas ayuda? Podría intentar ayudar

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Helpppppppppppppppppppp

Sloan [31]

Answer:

Sum of $\frac{7x}{x^2-4}$ and $\frac{2}{x+2}$ is $\mathbf{\frac{9x-4}{x^2-4}}$

Option B is correct answer.

Step-by-step explanation:

We need to find sum of $\frac{7x}{x^2-4}$ and $\frac{2}{x+2}$

Finding sum of $\frac{7}{x^2-4}$ and $\frac{2}{x+2}$ :

$\frac{7x}{x^2-4}+\frac{2}{x+2}$

We know that $x^2-4 =(x+2)(x-2)$

Replacing x^2-4

$\frac{7x}{(x+2)(x-2)}+\frac{2}{x+2}$

Now, taking LCM of (x+2)(x-2) and (x+2) we get (x+2)(x-2)

$=\frac{7x+2(x-2)}{(x+2)(x-2)}\\=\frac{7x+2x-4}{(x+2)(x-2)}\\=\frac{9x-4}{(x+2)(x-2)}\\=\frac{9x-4}{x^2-4}$

So, Sum of $\frac{7x}{x^2-4}$ and $\frac{2}{x+2}$ is $\mathbf{\frac{9x-4}{x^2-4}}$

Option B is correct answer.

6 0

2 years ago

X/-1 >2/5 x = I need help I don't understand what x is

Mashutka [201]

Answer:

its means a varieble or an unknown value

Step-by-step explanation:

7 0

3 years ago

A square has an area of 196 cm 2. what is the radius of the largest circle you can fit inside

GuDViN [60]

A circle with a radius of 7cm. I know this is late lol. A square is equilateral so all sides are equal. To find the side lengths given the area you just need to take the square root of the area. You get 14cm. If you put a circle in the square the radius would just be half of one side.

7 0

3 years ago

The factored form of 25p29 10 – 169?

Yanka [14]

Answer:

I'm guessing you are trying to say this is 25p29=10-169 If not let me know in comments and I'll change it! But here is the answer: 72750p-169

Explained:

25p*29=10 – 169

solve=

72750p-169

Hope this helps! If so please mark brainliest and rate/heart if it did!

8 0

3 years ago

What is the answer of x and y-4x+y= -1

Len [333]

Answer: x= 1/4 + 1/2y

Step-by-step explanation:

y-4x + y= -1

2y - 4x= -1

-4x= -1 - 2y

x= 1/4 + 1/2y

8 0

3 years ago