I think its 10 
Correct me if im wrong 
But all u have to do is multiply 2.5 x 4=10
        
             
        
        
        
Answer:

Step-by-step explanation:
300 degrees is in the fourth quadrant (it's between 270 and 360); sine is negative in the fourth quadrant.
Given we're in the fourth quadrant, the reference angle is 360 - 300 = 60 degrees
 sin(60°) =  
 
And since sine is negative, this value turns negative:
sin(300°) = 
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The formula of an area of a circle:

<em>r</em> - radius
We have the endpoints of a diameter of a circle.
The formula of a distance between two points:

Substitute the coordinates of the given points A(3, 4) and B(10, 4):

Therefore we have the length of the diameter: <em>d = 7</em>
We know: <em>d = 2r.</em> Therefore

Substitute to the formula of an area:

<em>There is no such answer in the answers to choose.</em>
<em>Apparently you have some error in the coordinates of the endpoints.</em>
 
        
             
        
        
        
Answer:
The elements of S-block elements are 14, so therefore to create an inequality model we declare S  to be the unknown variable.
therefore since we have 14 elements we use an inclusive class interval from 1-14. the model is given as 
1≤S≥14
Step-by-step explanation:
 you have to declare variables before for the unknowns.
you also declare the class interval to be inclusive class interval or exclusive class interval.