Answer:
a. See attachment below
b. 613 people
c. Categorical
Step-by-step explanation:
a. View attachment below
b.
Given
Total Number of People Surveyed = 1021
X tax return by professional / Number of People Surveyed = 60%
X tax /1021 = 0.6
X tax = 0.6 * 1021
X tax = 612.6
X tax = 613------ Approximated
So, the number of people used an accountant or professional tax preparer are 613.
c.
The data for preparing a tax return will be considered as categorical as the methods for a person to file his/her tax returns are categorized into four which are:
1.Electronically
2.Manual preparation
3.Online tax service
4.Use of software tax program
D I believe if I’m not wrong
Answer:
$17.50
Step-by-step explanation:
$18.37=x+5%
18.37=1.05x
18.37/1.05=x
x=$17.50
Answer:
![f^{-1}(x)=2^x](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%3D2%5Ex)
B is the correct option.
Step-by-step explanation:
We have to find the inverse of the logarithmic function ![f(x)=\log_2x](https://tex.z-dn.net/?f=f%28x%29%3D%5Clog_2x)
Below are the steps to find the inverse:-
Step 1:-
Set f(x) =y
![y=\log_2x](https://tex.z-dn.net/?f=y%3D%5Clog_2x)
Step 2:-
Interchange x and y
![x=\log_2y](https://tex.z-dn.net/?f=x%3D%5Clog_2y)
Step 3:-
Solve for y
We know the relation:-
If ![y=b^x\Rightarrow x=\log_b(y)](https://tex.z-dn.net/?f=y%3Db%5Ex%5CRightarrow%20x%3D%5Clog_b%28y%29)
Using this relation, we have
b=2
![y=2^x](https://tex.z-dn.net/?f=y%3D2%5Ex)
Step 3:-
The value of y is the inverse of the function.
![f^{-1}(x)=2^x](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%3D2%5Ex)
B is the correct option.