Answer: 
Step-by-step explanation:
We are given the following formula, used to calculate the value of an used car according to the years after the car was originally bought:

Where  is the price of the car when it was bought new, and
 is the price of the car when it was bought new, and  is the number of years the car was used.
 is the number of years the car was used.
Solving the formula with the given data:
 This is the value of the car according to the formula.
 This is the value of the car according to the formula.
However, this value can be approximated to:

 
        
             
        
        
        
Answer:
7r³ - 3r² + 20r
Step-by-step explanation:
(9r³ + 5r² + 11r) + (-2r³ + 9r - 8r²)
You can get rid of the parentheses since there is nothing to distribute.
9r³ + 5r² + 11r - 2r³ + 9r - 8r²
Combine like factors.
7r³ - 3r² + 20r
 
        
             
        
        
        
Answer:
![\sqrt[12]{55296}](https://tex.z-dn.net/?f=%5Csqrt%5B12%5D%7B55296%7D) /2
/2
Step-by-step explanation:
![\sqrt[4]{6}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B6%7D) /
/![\sqrt[3]{2}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B2%7D) =1.2422
=1.2422
![\sqrt[12]{27}](https://tex.z-dn.net/?f=%5Csqrt%5B12%5D%7B27%7D) /2=0.66 <-- not matching with the top expression.
/2=0.66 <-- not matching with the top expression. 
![\sqrt[4]{24}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B24%7D) /2=1.11<--not matching with the top expression.
/2=1.11<--not matching with the top expression. 
![\sqrt[12]{55296}](https://tex.z-dn.net/?f=%5Csqrt%5B12%5D%7B55296%7D) /2=1.2422<-- matches!!
/2=1.2422<-- matches!!
![\sqrt[12]{177147}](https://tex.z-dn.net/?f=%5Csqrt%5B12%5D%7B177147%7D) /3=0.91<-- not matching with the top expression.
/3=0.91<-- not matching with the top expression. 
 
        
             
        
        
        
1.       <span>The name of period that has 486 in the given number which is 751 486  is hundreds.
period is considered to a group of places of the digits, like the given number 486 is the group of hundred because the highest number it contains is 400.
=> 400 + 80 + 6
=> 4 hundreds + 8 tens + 6 ones
=> 486
while 751 is the period of hundred thousands.
=> 700 000 + 50 000 + 1 000
=> 751 000
</span>
        
             
        
        
        
The answer to number one is 18 and the answer to number two is -1