Inequalities

Read the complete problem, then answer its numbered subtasks.

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Exercise 1

Book 2 · Inequalities

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Լուծել անհավասարումը.

Subtask 1

$5 + 8 x 8 + 9 x \leq 45$ :

1

$] (; 2 - \infty$

2

$(); 1, 75 - \infty$

3

$] (; 1, 75 - \infty$

4

$[1, 75;$ $) + \infty$

Subtask 2

$5 x - 12 \leq 13$ :

1

$] (- \infty; 5$

2

$[2, 4;) + \infty$

3

$[) 2, 4; 5$

4

$[] 2, 4; 5$

Subtask 3

$x 2 - () 0, 75$ $9 \geq 16$ :

1

$[4;$ $) + \infty$

2

$(2;$ $) + \infty$

3

$(; - \infty$ $) 4$

4

$] (; 4 - \infty$

Subtask 4

$() l g x - 25 < 2$ :

1

$(); 125 - \infty$

2

$[) 25; 125$

3

$() 25; 125$

4

$(25;$ $) + \infty$

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