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noname [10]
3 years ago
12

Which choice is the appropriate simplified form n restriction for the variable 3x^2 + 6x / x^2 - 2x - 8

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
3 0
\frac{3x^{2}+6x}{x^{2}-2x-8} = \frac{3x(x+2)}{(x-4)(x+2)}= \frac{3x}{x-4} 
\\ \\ \frac{3x}{x-4} , x \neq 4

x \neq -2
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joja [24]
The swimmer will take 67.17 second.
6 0
3 years ago
Read 2 more answers
Please help. Thank you :)
mixer [17]

Okay, first let's look at what they give us!


The measure of angle 2 is 3x + 1


Measure of angle 3 is 2x + 4


And they give us that one angle is right which means it is 90°


Now if we use what we know of triangles, we know that all the angles in a triangle add up to equal 180 which means if we add angle 2, angle 3, and the right angle together we should get 180. Let's write an equation for it:


3x + 1 + 2x + 4 + 90 = 180


First we will add together liked terms!


3x + 2x = 5x


1 + 4 + 90 = 95


This gets us:


5x + 95 = 180


Second, let's get rid of that 95 by subtracting it from both sides, after doing this it should leave us with:


5x = 85


Third we need to get the x by itself and we can do it by dividing both sides by 5 to get:


x = 17


Now the question asks to find the measure of angle 2, given that angle 2 is 3x + 1 all there is left to do is to plug in 17 for x!

3(17) + 1


51 + 2 to get us 52!


Answer: 52

3 0
3 years ago
What number in 328 is in the tenths place
docker41 [41]

Answer:

2

Step-by-step explanation:i believe hope it helps:)

6 0
3 years ago
What is the value of x?
MrRissso [65]
180-58=122=x
Its honestly a piece of cake a straight line will <u>Always</u> have a degree measurement on one-hundred and eighty degrees

6 0
3 years ago
What is the perimeter of this rectangle?
BlackZzzverrR [31]
The length of the rectangle would be X2 - X1
The height of the rectangle would be Y2-Y1

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The perimeter would be 2(X2-X1) + 2(Y2-Y1)

The first choice would be the correct answer.
7 0
3 years ago
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