Triangles with a 90 degree angle. We use the sine, cosine and tangent functions to determine the missing angles and sides.
        
                    
             
        
        
        
Articles of clothing that the store received last Thursday is 84
<u>Solution:</u>
Given that  
A clothing donation store received numerous articles of clothing on Thursday of last week.
The number of articles of clothing that the store received last Thursday is represented by the following expression:
4 (3x − 1) − 2 (6 + 2x)
Need to calculate articles of clothing that the store received last Thursday when x = 12.5
As on Thursday x = 12.5, need to substitute x = 12.5 in above equation to get number of articles received on Thursday.
On substituting x = 12.5, we get
4 ( (3 x 12.5 ) – 1 ) – 2 ( 6 + ( 2 x 12.5 ) )
=> 4 (37.5 – 1) – 2 (6 + 25)
=> 146 – 62 = 84
On substituting x = 12.5 , we are getting value of expression as 84.
Hence articles of clothing that the store received last Thursday is 84
 
        
             
        
        
        
Answer:
Ummm I dont know what subject it is so i will guess 2.3?
Step-by-step explanation:
I'm Sorry im really useless