Could x = -5 be a solution to the inequality -6 < 3x + 9 < 21?
2 answers:
<em>So you think that x = -5 is the solution for the inequality? Let's check it out.</em>
<em>(Check)</em>
<em>- Substitute x = -5 in the inequality</em>
<em /><em />
<em>If it was the symbol ≤ you'd be correct, but it's < so It's a bit wrong.</em>
<em />
<em>Now let's solve the inequality. Separate the inequality by parts.</em>
<em /><em />
<em>Therefore, the inequality is true only when x > -5 or x < 4.</em>
<em />
<em>(Check)</em>
<em>- Substitute x = -4 in the inequality.</em>
<em /><em />
<em>The inequality is true for first case.</em>
<em>- Substitute x = 3 in the inequality</em>
<em /><em />
<em>The inequality is true for second case.</em>
<em />
<em>So the answer for inequality is -5 < x < 4</em>
<em />
<em>That means only {-4, -3, -2, ..., 3} can make the inequality true.</em>
You might be interested in
Answer:
17.9 units is the answer
Step-by-step explanation:
points are (-7,-2) and (9,6)
Pythagorean theorem can be written as,
Rounding off,
d = 17.9 units