Answer:
2.8+.55x=5 x=4
Step-by-step explanation:
5-2.8=2.2
2.2/.55=4
 
        
             
        
        
        
Answer:
yes it is because the second triangle is the base and the other three triangles are the sides of the three dimensional shape
 
        
             
        
        
        
Step-by-step explanation:
 4 is the A or Ampltiude
To find the period set it equal to 2 pi/B


b=

b=

There is no phase shift
 The midline or d or vertical shift  is 1.
Our equation for 8 is 

9.Use sin function. The a value is 2 or -2 your choice.
Set up the period equal to the equation



Which equal 6. 
B=6
There is no C and the D and Vertical Shift is 1.
Our equation is 

 
        
             
        
        
        
Answer:
=>12-2
=> 10
<em><u>You're Welcome</u></em>
<em><u>Hope this helps you.</u></em>
<h2>
<em><u>Pls</u></em><em><u>, mark it as the brainliest. I need it.</u></em></h2>