Answer:
16 cm²
Step-by-step explanation:
 
        
             
        
        
        
9514 1404 393
Answer:
   1.67 m, 8.33 m
Step-by-step explanation:
If the ratio of lengths is 1 : 5, then the ratio of the shortest length to the total is ...
   1 : (1+5) = 1 : 6
The shortest length is (10 m)×(1/6) = 1.67 m. The longer length is 10 -1.67 = 8.33 m.
The lengths of the pieces are 8.33 m and 1.67 m.
 
        
             
        
        
        
Answer:
3y+7x+3
Step-by-step explanation:
3y+2x+5x-4+
=3y+7x+3
 
        
             
        
        
        
11+b-y
Hope this helps 
Have a happy holidays
        
             
        
        
        
Answer:
6.7
Step-by-step explanation:
This is trigonometry. We will have to find the opposite leg and the hypotenuse is given to us as 10. So we will have to use sin. 
Soh in Soh cah toa
                   So  sin(42)=x/10
                         10 times sin(42)=x
                              Evaluate using a calculator=6.69130606 and so on
                                  Rounded to the nearest tenth is 6.7
So the answer is 6.7