Answer:
K = -72
Step-by-step explanation:
1. Get K/9 by itself to do so add 3 to both sides eliminating it on the left by turning the -11 into -8
2. Multiply by 9 on both sides eliminating the division of 9 on the left and turning -8 into -72 leaving the equation as K = -72
To eliminate a number you must do its opposite so the opposite of -3 is +3 so you +3 to both sides. And always start the equation by eliminating what is not connected to the variable in this case the 9 was connected to the variable as K/9.
 
        
             
        
        
        
$3.30 because taking the cost of 24, which is $7.20, and dividing is by the amount, 24, you get that one Blow-Pop costs $0.30. Then to find how many 11 costs you just need to multiply $0.30 by 11, and you get $3.30.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The function that could model this periodic phenomenon will be of the form 

The tide varies between 3ft and 9ft, which means its amplitude  is
 is 

and its midline  is
 is 
 .
.
Furthermore, since at  the tide is at its lowest ( 3 feet ), we know that the trigonometric function we must use is
 the tide is at its lowest ( 3 feet ), we know that the trigonometric function we must use is  .
. 
The period of the full cycle is 14 hours, which means 


giving us

With all of the values of the variables in place, the function modeling the situation now becomes 

 
        
             
        
        
        
Answer:
Hello :
 (x+4)/(4+x) = (x+4)/(x+4)  = 1   ( answer : C )  but x+4 no : 0