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shusha [124]
3 years ago
14

What is the solution to | 2x-4| >8?

Mathematics
1 answer:
Serga [27]3 years ago
8 0
| 2x-4| \ \textgreater \ 8 \\ \\ 2x - 4 \ \textgreater \  8 \ , \ -(2x - 4) \ \textgreater \  8 \ / \ break \ problem \ into \ 2 \ equations \\ \\ first \ equation  \\ \\ 2x \ \textgreater \  8 + 4 \ / \ add \ 4 \ to \ each \ side \\ \\ 2x \ \textgreater \  12 \ / \ simplify \\ \\ x \ \textgreater \   \frac{12}{2} \ / \ divide\ each \ side \ by \ 2 \\ \\ x \ \textgreater \  6 \ / \ simplify \\ \\ second \ equation \\ \\ -2x + 4 \ \textgreater \  8 \ / \ simplify \\ \\ -2x \ \textgreater \  8 - 4 \ / \ subtract \ 4 \ from \ each \ side \\ \\ -2x \ \textgreater \  4 \ / \ simplify \\ \\  x \ \textless \   \frac{4}{-2} \ / \ divide \ each \ side \ by \ -2 \\ \\ 
\\ \\ x \ \textless \  -  \frac{4}{2} \ / \ simplify \\ \\ x \ \textless \  - 2 \ / \ simplify \\ \\ collect \ solutions \\ \\ x \ \textgreater \  6 \ , \ x \ \textless \  -2 \\ \\

So, your answer to this problem is x > 6 and x < -2.
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Step-by-step explanation:

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anzhelika [568]

The thirty-second term is 143

Further explanation:

As it is already given that the given sequence is an arithmetic sequence

We have to find the common difference first

So,

a_1=-12\\a_2=-7\\a_3=-2\\a_4=3

d=a_2-a_1=-7-(-12)=-7+12=5\\a_3-a_2=-2-(-7)=-2+7=5

The common difference is 5.

And first term is -12

The explicit formula for arithmetic sequence is:

a_n=a_1+(n-1)d\\Here,\\a_n\ is\ nth\ term\\a_1\ is\ first\ term\\d\ is\ common\ difference

Putting the values in the formula

a_n=-12+(n-1)(5)\\a_n=-12+5n-5\\a_n=-17+5n

Putting n=32 in explicit formula

a_{32}=-17+5(32)\\=-17+160\\=143

The thirty-second term is 143

Keywords: Common difference, Arithmetic Sequence

Learn more about arithmetic sequence at:

  • brainly.com/question/10879401
  • brainly.com/question/10940255

#LearnwithBrainly

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