Answer:
<h2>0</h2>
Step-by-step explanation:
METHOD 1.
We know:

Therefore

METHOD 2.


exchange x to y and vice versa:

solve for y:
<em> subtract 12 from both sides</em>
<em>divide both sides by 3</em>

replace x in f(x) with the expression

put x = 0 to 

METHOD 3.


Calculate the value of <em>f</em> ⁻¹(x) for x = 0:

Calculate the value of <em>f(x)</em> for x = -4:

Answer:
Acute
Step-by-step explanation:
two of the angles are acute and the other is right.
Answer:
<u>Use a </u><u>table</u>
- The display will be used to look up individual values.
- It will be used to compare individual values but not entire series of values to one another.
- Precise values are required.
- The quantitative information to be communicated involves more than one unit of measure.
- Both summary and detail values are included.
<u>Use a graph</u>
- The message is contained in the shape of the values (e.g. patterns, trends, exceptions).
- The display will be used to reveal relationships among whole sets of values.
Source
<em>In the comments</em>
<em>Hope </em><em>this</em><em> </em><em>helps!</em>
Answer:
<h3 /><h3>The number is 162</h3>
Step-by-step explanation:
Let the number be<u> x</u>
5/9 of the number is 90
Which is
5/9 of x = 90
5/9 × x = 90
5/9x = 90
Multiply through by 9
That's
5x = 810
Divide both sides by 5
5x/5 = 810/5
x = 162
Therefore the number is 162
Hope this helps you
Answer:
B
Step-by-step explanation: