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IrinaVladis [17]
4 years ago
5

PLEASE HELP!!!!!!!!!!!!!! WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
siniylev [52]4 years ago
4 0

Answer:

<u>(3);  (-1/2);  (-4)</u>

Step-by-step explanation:

First, you should convert the equation into cubic form.

r(x)=(x^2+x−12)(2x+1)

<u>2x^3  +3 x^2 − 23x− 12=0</u>

Next, use the rational roots test to find the first root.

<u>(-1/2) </u>

Using the factor theorem you can find the other roots.

<u>(3)</u>    <u>(-4)</u>

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Choose the lengths that are possible to make a triangle that already has sides lengths of 4 and 10.
netineya [11]

Answer:

C. 7,8,9,10,11,12,13

Step-by-step explanation:

I finish it from Schoology.

7 0
3 years ago
A number 1-8 with the bottom number 10
zheka24 [161]

Answer:

Step-by-step explanation:

Choose 3 (or any other digit between 1 and 8).  Then the numerator of a fraction would be 3 and the "bottom number," by which you mean "denominator," would be 10:

 3

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10

7 0
3 years ago
….. solve for X………….
DerKrebs [107]

Answer:

x=5

Step-by-step explanation:

these two angles are the same so set both equations equal to each other and solve for x.

23x-5=21x+5\\23x=21x+10\\2x=10\\x=5

1. set equations equal to each other

2. add 5 to both sides

3. subtract 21x from both sides

4. divide both sides by 2 to get x alone

5. x=5

5 0
2 years ago
The sum of 6c- 5c and the opposite of 6c
dimulka [17.4K]

Answer:

-5c

Step-by-step explanation:

To find: The sum of 6c-5c and opposite of 6c

Opposite of 6c means taking the opposite sign.

6c is positive. So, opposite sign is -6c.

Therefore, the addition is given as:

=6c-5c+(-6c)

Opening the parenthesis, we get:

6c-5c-6c

Now, as per PEDMAS rule, we subtract 6c\ and\ 5c, we get

6c-5c=(6-5)c=1c

Now, we are left with 1c-6c

Subtracting a bigger number from a smaller number will give a negative answer.

So, 1c-6c=(1-6)c=-5c

Therefore, the final answer is -5c

3 0
4 years ago
What symbol compare fractions 5/7 1/13
Kitty [74]

Answer:

5/7 > 1/13. Hence Greater than Symbol will be used to compare the fractions.

Step-by-step explanation:

Given:

Two fractions given are 5/7 and 1/13

We will first calculate each of the fraction and then we will decide which one is greater and which one is smaller accordingly we will assign the symbol for the same.

First we will find the answer for 5/7.

Now dividing the number 5 from 7 we get;

5/7= 0.714

Now we will find the answer for 1/13

Now dividing the number 1 from 13 we get;

\frac{1}{13}= 0.076

From above we can see that 0.714 is greater than 0.076.

Hence we can say that 5/7 is greater than 1/13.

So the symbol used will be greater than > where number 5/7 is greater than 1/13

5/7 > 1/13

7 0
4 years ago
Read 2 more answers
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