Answer:
Yes
Step-by-step explanation:
To find the answer, you just have to plug the (x,y) values into the equation to see if it is true.
3(1) > 5(-6) -12
3 > -30 -12
3 > -42
Since 3 > -42 the ordered pair is a solution to the inequality
 
        
             
        
        
        
Answer:

The number of texts she can have is less than 600.
Step-by-step explanation:
Total monthly charge
30 + 0.05 for each text.
So, for x tests, the charge is:

Write an inequality to represent the # of texts she can have?
It has to be under 60, so:


The solution is:



The number of texts she can have is less than 600.
 
        
             
        
        
        
Answer:
sorry dont know
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Option A is correct.
Solution for the given equation is, 
Step-by-step explanation:
Given that : 
Let 
then our equation become;
 .....[1]
           .....[1]
A quadratic equation is of the form:
 .....[2] where a, b and c are coefficient and the solution is given by;
.....[2] where a, b and c are coefficient and the solution is given by; 

Comparing equation [1] and [2] we get;
a = 2 b = -1 and c =-1
then;

Simplify:

or


or
 and
 and 
Simplify:
y = 1 and  
 
Substitute y = cos x we have;

⇒
and

⇒  
 
The solution set:  
Therefore, the solution for the given equation   is,
 is, 