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
 
        
             
        
        
        
H= -1 here's why:
7 = 12 + 5h 
First you subtract 12 from both sides then the equation would look like:
-5 = 5h
Then you would divide the equation by 5 from both sides it would then look like:
-1 = h 
        
             
        
        
        
Try comparing your solution with the following:
Solution:

Answer:

Check:
![2[10-13(\frac{40}{17})]+9(\frac{40}{17})=-34(\frac{40}{17})+60\\-20=-20](https://tex.z-dn.net/?f=2%5B10-13%28%5Cfrac%7B40%7D%7B17%7D%29%5D%2B9%28%5Cfrac%7B40%7D%7B17%7D%29%3D-34%28%5Cfrac%7B40%7D%7B17%7D%29%2B60%5C%5C-20%3D-20)
<em>Hope this was helpful.</em>
 
        
             
        
        
        
Answer: 198 is your answer:65+66+67 = 198 Hope I helped!
Step-by-step explanation:
 
        
             
        
        
        
Answer:
55
Step-by-step explanation:
Trust me