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Few math questions TIME IS RUNNING OUT!! PLEASE HELP!!!!

PLEASE LOOK AT ALL THE PHOTOS TO SEE ALL THE QUESTIONS.

Few math questions TIME IS RUNNING OUT!! PLEASE HELP!!!! PLEASE LOOK AT ALL THE PHOTOS-example-1
Few math questions TIME IS RUNNING OUT!! PLEASE HELP!!!! PLEASE LOOK AT ALL THE PHOTOS-example-1
Few math questions TIME IS RUNNING OUT!! PLEASE HELP!!!! PLEASE LOOK AT ALL THE PHOTOS-example-2
Few math questions TIME IS RUNNING OUT!! PLEASE HELP!!!! PLEASE LOOK AT ALL THE PHOTOS-example-3
Few math questions TIME IS RUNNING OUT!! PLEASE HELP!!!! PLEASE LOOK AT ALL THE PHOTOS-example-4
User Vladimyr
by
5.3k points

1 Answer

2 votes
1.


|5+6x|\ \textless \ 13\\\\-13\ \textless \ 5+6x\ \textless \ 13

so


\begin{cases}5+6x\ \textless \ 13\\5+6x\ \textgreater \ -13\end{cases}

Answers B and D.

2.


|x+9|\geq11\\\\x+9\ \textgreater \ 11\qquad\vee\qquad x+9\leq-11\\\\ \boxed{x\geq2\qquad\vee\qquad x\leq-20}

Answer D.

3.

The same as point 2. Answer D.

4.

Answer C.

User Marat Ibragimov
by
6.6k points