Answer:
Just as the square root is a number that, when squared, gives the radicand, the cube root is a number that, when cubed, gives the radicand. Cubing a number is the same as taking it to the third power: 23 is 2 cubed, so the cube root of 23 is 2.
Step-by-step explanation:
there i hope you understood 
 
        
                    
             
        
        
        

A linear function has 1 as the highest power of the variable.
A. f(x) = 2 - 7x
here, the highest power of the variable x is 1.
Hence it is a LINEAR function.
___________
B. f(x) = 2 + x + x^2
here, the highest power of the variable x is 2.
Hence it is NOT a linear function.
_______________

here, the highest power of the variable x is 1/2.
Hence it is NOT a linear function.
________________
 
        
             
        
        
        
C=5/9 (62-32)
c=(5/9)*30
c= 150/9
c=16.666....
so c=16.6
        
                    
             
        
        
        
Answer:  4/5 , 3/10
Step-by-step explanation: 
 P(not drawing black marble)=
                                      = 8/10
                                      =4/5
P(drawing a red marble)=
                                           =3/10
 
        
                    
             
        
        
        
Answer:
He will have $39,750 at the end of five years.
Step-by-step explanation:
This is a simple interest problem.
The simple interest formula is given by:

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.
After t years, the total amount of money is:

In this question:

Interest earned:

Total amount:

He will have $39,750 at the end of five years.