All categories

3 years ago

Which of the following is equal to the rational expression when x doesnt equal 5? x^2 - 25/ x - 5

Mathematics

2 answers:

Gnoma [55]3 years ago

8 0

Answer:

(x+5)

Step-by-step explanation:

scoundrel [369]3 years ago

4 0

The complete question in the attached figure

we have that
(x² - 25)/ (x - 5)

we know
(x² - 25)-------------> (Difference of two squares)----------> (x+5)*(x-5)

then

(x² - 25)/ (x - 5)-------> (x+5)*(x-5)/(x-5)------------> (x+5)

the answer is the option B)
(x+5)

You might be interested in

In circle O, AC and EB are diameters the measure of arc DC is 50. what is the measure of EBC

Dahasolnce [82]

220 is the measure of EBC

8 0

3 years ago

Read 2 more answers

Is the number a multiple of8?Write yes or no.

Sergeeva-Olga [200]

Answer:

40 and 8 is the only multiple of 8

8x5=. 40

8x1 = 8

7 0

3 years ago

Read 2 more answers

-5x-3.5 < 6.5 -5x <10 x >2

Studentka2010 [4]

Answer:

x=3 ??i think

Step-by-step explanation:

cuz it makes sense like that

6 0

3 years ago

How do i find the slope

Elodia [21]

Hi, I'm happy to help!

To find the slope, you need to use the slope formula, where m is the slope:

m= $\frac{y_{2}-y_{1 } }{x_{2} -x_{1} }$

Slope means rise over run, or how much the line rises per the amount the line moves forward. This equation shows the movement from the y points to show rise, over the difference in the x points to show run.

Now, to find the slope we insert our values, starting with our second y point:

m= $\frac{2-y_{1 } }{x_{2} -x_{1} }$

Now insert our first y point:

m= $\frac{2-4 }{x_{2} -x_{1} }$

Now we insert our second x point:

m= $\frac{2-4 }{-3 -x_{1} }$

And finally our first x point:

m= $\frac{2-4 }{-3 -3 }$

Now, we solve:

m= $\frac{-2 }{-6}$

So, our slope is -2/-6, to simplify it, we remove both negatives because they cancel each other out.

m= $\frac{2 }{6}$

Now, we simplify our fraction by dividing the top and bottom by 2:

m= $\frac{1}{3}$

So, our slope is 1/3. This means that for every 1 unit the line rises, it goes to the right 3 units. The y-intercept is where the line hits the y axis.

If the question is asking for slope intercept form for the equation, you use y=mx+b

y represents any y coordinate on your line, m represents your slope (1/3), x represents any x coordinate on your line, and b represents your y-intercept (3).

If you were to insert these values, you would get:

y= $\frac{1}{3}$ x+3

You use this to find what a y coordinate would be so you can draw your line.

For the next equation we do the same thing:

m= $\frac{y_{2}-y_{1 } }{x_{2} -x_{1} }$

Insert our values:

m= $\frac{4-1}{2-(-4)}$