Answer:
7
Step-by-step explanation:
You divided both 28 and 4 and you will get 7 as your answer.
 
        
             
        
        
        
WE need to complete the square on the x and y terms:-
25x^2 - 100x - 9y^2 - 90y = 350
25(x^2 - 4x +    ) - 9(y^2 + 10x       )  =   350 + 25(  )  - 9(  )
25(x^2 - 4x  + 4 ) - 9(y^2 + 10x  + 25)  = 350  + 25(4)  - 9(25) 
25(x - 2)^2 - 9(y + 5)^2 = 
25(x - 2)^2   -  9(y + 5)^2          =  225
----------------    --------------            --------
    225                 225                    225
  ( x  - 2)^2         (y + 5)^2  
  -------------   -   --------------  =    1         Answer
        9                    25                               
        
             
        
        
        
Answer:
<h2><em>
 $10.</em></h2>
Step-by-step explanation:
<h3><em>
If eight avocados is equal to four dollars, then sixteen (eight times two) is equal to eight dollars. Since you can't add another eight avocados to get twenty, you would add half of eight, which would also be half of the cost of eight. Adding four to sixteen gets you to twenty and adding two dollars to eight gets you to ten dollars.</em></h3>
 
        
                    
             
        
        
        
Answer:
Bond Price= $1,070.24
Step-by-step explanation:
Giving the following information: 
Cupon= $80
Number of periods= 10 years
Face value= $1,000
Interest rate= 7%
<u>To calculate the price of the bond, we need to use the following formula:</u>
Bond Price= cupon*{[1 - (1+i)^-n] / i} + [face value/(1+i)^n]
Bond Price= 80*{[1 - (1.07^-10)] / 0.07} + [1,000 / (1.07^10)]
Bond Price= 561.89 + 508.35
Bond Price= $1,070.24