How do you solve $a+9\le -14$ ?

landdenaw
2022-06-27
Answered

How do you solve $a+9\le -14$ ?

You can still ask an expert for help

Bruno Hughes

Answered 2022-06-28
Author has **25** answers

Step 1

You solve inequalities just like equations.

$a+9\le -14$

Similar to solving a variable in an equation, you have to make the variable by itself. To do this, we need to subtract the 9 from both sides of the inequality.

So it becomes:

$a\le -23$

This means that a is less than or equal to -23.

You solve inequalities just like equations.

$a+9\le -14$

Similar to solving a variable in an equation, you have to make the variable by itself. To do this, we need to subtract the 9 from both sides of the inequality.

So it becomes:

$a\le -23$

This means that a is less than or equal to -23.

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1) Evaluate without using a calculator.

$\mathrm{sec}(-\frac{\pi}{3})-\mathrm{cot}(-\frac{5\pi}{4})$

2) Evaluate without using a calculator.

$\mathrm{cos}\frac{\pi}{2}-\mathrm{csc}(-\frac{\pi}{2})$

3) Simplify the expression:

$\mathrm{tan}\beta \mathrm{cot}\beta $

4) Evaluate without using a calculator.

${\mathrm{sin}}^{2}{20}^{\circ}+\frac{1}{{\mathrm{sec}}^{2}{20}^{\circ}}$

5) Evaluate without using a calculator.

$\frac{\mathrm{sin}(-{40}^{\circ})}{\mathrm{cos}{50}^{\circ}}$

6) Evaluate without using a calculator.

$\mathrm{sin}{400}^{\circ}\mathrm{sec}(-{50}^{\circ})$

7) Find the exact value of all remaining trig functions

$\mathrm{sin}\theta =\frac{4}{5},\theta $ is acute

$\mathrm{sec}(-\frac{\pi}{3})-\mathrm{cot}(-\frac{5\pi}{4})$

2) Evaluate without using a calculator.

$\mathrm{cos}\frac{\pi}{2}-\mathrm{csc}(-\frac{\pi}{2})$

3) Simplify the expression:

$\mathrm{tan}\beta \mathrm{cot}\beta $

4) Evaluate without using a calculator.

${\mathrm{sin}}^{2}{20}^{\circ}+\frac{1}{{\mathrm{sec}}^{2}{20}^{\circ}}$

5) Evaluate without using a calculator.

$\frac{\mathrm{sin}(-{40}^{\circ})}{\mathrm{cos}{50}^{\circ}}$

6) Evaluate without using a calculator.

$\mathrm{sin}{400}^{\circ}\mathrm{sec}(-{50}^{\circ})$

7) Find the exact value of all remaining trig functions

$\mathrm{sin}\theta =\frac{4}{5},\theta $ is acute