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oksian1 [2.3K]
3 years ago
10

How would I use a number line?

Mathematics
2 answers:
Scrat [10]3 years ago
6 0
1. u find the solution to the problem (-8)
2. Make
a # line. 
3. Put the # on the # line.
Zolol [24]3 years ago
3 0
All you have to do is distrubute which would give you the anwser of -8 and then all you do is draw you a numberline with 0 in the middle and negative numbers on the left side of 0 and on the right side put your positive numbers and them put your point by -8 and then you will be done.
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Answer:

Option A.

Step-by-step explanation:

According to triangle inequality theorem, a triangle exists if the sum of two sides is greater that third side.

Apply this theorem on each combination.

Case I: (2x+4)+6x>18

8x+4>18

8x>14

x>\dfrac{14}{8}

x>\dfrac{7}{4}      ...(1)

Case II: (2x+4)+18>6x

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\dfrac{22}{4}>x

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Case III: 6x+18>2x+4

6x-2x>4-18

4x>-14

x>-\dfrac{14}{4}

x>-\dfrac{7}{2}     ...(3)

On combining (1), (2) and (3), we get

\dfrac{7}{4}

Therefore, the correct option is A.

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